willingly (Greek #1635)

Romans
8:20  For
ho (Greek #3588)
the definite article; the (sometimes to be supplied, at others omitted, in English idiom)
KJV usage: the, this, that, one, he, she, it, etc.
Pronounce: ho
Origin: ἡ (hay), and the neuter τό (to) in all their inflections
gar (Greek #1063)
properly, assigning a reason (used in argument, explanation or intensification; often with other particles)
KJV usage: and, as, because (that), but, even, for, indeed, no doubt, seeing, then, therefore, verily, what, why, yet.
Pronounce: gar
Origin: a primary particle
the creature
ho (Greek #3588)
the definite article; the (sometimes to be supplied, at others omitted, in English idiom)
KJV usage: the, this, that, one, he, she, it, etc.
Pronounce: ho
Origin: ἡ (hay), and the neuter τό (to) in all their inflections
ktisis (Greek #2937)
original formation (properly, the act; by implication, the thing, literally or figuratively)
KJV usage: building, creation, creature, ordinance.
Pronounce: ktis'-is
Origin: from 2936
was made subject
hupotasso (Greek #5293)
to subordinate; reflexively, to obey
KJV usage: be under obedience (obedient), put under, subdue unto, (be, make) subject (to, unto), be (put) in subjection (to, under), submit self unto.
Pronounce: hoop-ot-as'-so
Origin: from 5259 and 5021
to vanity
mataiotes (Greek #3153)
inutility; figuratively, transientness; morally, depravity
KJV usage: vanity.
Pronounce: mat-ah-yot'-ace
Origin: from 3152
, not
ou (Greek #3756)
the absolute negative (compare 3361) adverb; no or not
KJV usage: + long, nay, neither, never, no (X man), none, (can-)not, + nothing, + special, un(-worthy), when, + without, + yet but. See also 3364, 3372.
Pronounce: oo
Origin: οὐκ (ook), and (before an aspirate) οὐχ (ookh) a primary word
willingly
hekon (Greek #1635)
voluntary
KJV usage: willingly.
Pronounce: hek-own'
Origin: of uncertain affinity
, but
alla (Greek #235)
properly, other things, i.e. (adverbially) contrariwise (in many relations)
KJV usage: and, but (even), howbeit, indeed, nay, nevertheless, no, notwithstanding, save, therefore, yea, yet.
Pronounce: al-lah'
Origin: neuter plural of 243
by reason of
dia (Greek #1223)
through (in very wide applications, local, causal, or occasional)
KJV usage: after, always, among, at, to avoid, because of (that), briefly, by, for (cause) ... fore, from, in, by occasion of, of, by reason of, for sake, that, thereby, therefore, X though, through(-out), to, wherefore, with (-in). In composition it retains the same general importance.
Pronounce: dee-ah'
Origin: a primary preposition denoting the channel of an act
him who hath subjected
hupotasso (Greek #5293)
to subordinate; reflexively, to obey
KJV usage: be under obedience (obedient), put under, subdue unto, (be, make) subject (to, unto), be (put) in subjection (to, under), submit self unto.
Pronounce: hoop-ot-as'-so
Origin: from 5259 and 5021
the same in
epi (Greek #1909)
properly, meaning superimposition (of time, place, order, etc.), as a relation of distribution (with the genitive case), i.e. over, upon, etc.; of rest (with the dative case) at, on, etc.; of direction (with the accusative case) towards, upon, etc.
KJV usage: about (the times), above, after, against, among, as long as (touching), at, beside, X have charge of, (be-, (where-))fore, in (a place, as much as, the time of, -to), (because) of, (up-)on (behalf of), over, (by, for) the space of, through(-out), (un-)to(-ward), with. In compounds it retains essentially the same import, at, upon, etc. (literally or figuratively).
Pronounce: ep-ee'
Origin: a primary preposition
hope
elpis (Greek #1680)
expectation (abstractly or concretely) or confidence
KJV usage: faith, hope.
Pronounce: el-pece'
Origin: from a primary ἔλπω (to anticipate, usually with pleasure)
,
1 Corinthians
9:17   For
gar (Greek #1063)
properly, assigning a reason (used in argument, explanation or intensification; often with other particles)
KJV usage: and, as, because (that), but, even, for, indeed, no doubt, seeing, then, therefore, verily, what, why, yet.
Pronounce: gar
Origin: a primary particle
if
ei (Greek #1487)
if, whether, that, etc.
KJV usage: forasmuch as, if, that, (al-)though, whether. Often used in connection or composition with other particles, especially as in 1489, 1490, 1499, 1508, 1509, 1512, 1513, 1536, 1537. See also 1437.
Pronounce: i
Origin: a primary particle of conditionality
I do
prasso (Greek #4238)
to "practise", i.e. perform repeatedly or habitually (thus differing from 4160, which properly refers to a single act); by implication, to execute, accomplish, etc.; specially, to collect (dues), fare (personally)
KJV usage: commit, deeds, do, exact, keep, require, use arts.
Pronounce: pras'-so
Origin: a primary verb
this thing
touto (Greek #5124)
that thing
KJV usage: here (-unto), it, partly, self(-same), so, that (intent), the same, there(-fore, -unto), this, thus, where(-fore).
Pronounce: too'-to
Origin: neuter singular nominative or accusative case of 3778
willingly
hekon (Greek #1635)
voluntary
KJV usage: willingly.
Pronounce: hek-own'
Origin: of uncertain affinity
, I have
echo (Greek #2192)
(used in certain tenses only) a primary verb; to hold (used in very various applications, literally or figuratively, direct or remote; such as possession; ability, contiuity, relation, or condition)
KJV usage: be (able, X hold, possessed with), accompany, + begin to amend, can(+ -not), X conceive, count, diseased, do + eat, + enjoy, + fear, following, have, hold, keep, + lack, + go to law, lie, + must needs, + of necessity, + need, next, + recover, + reign, + rest, + return, X sick, take for, + tremble, + uncircumcised, use.
Pronounce: ekh'-o
Origin: σχέω (skheh'-o)
a reward
misthos (Greek #3408)
pay for service (literally or figuratively), good or bad
KJV usage: hire, reward, wages.
Pronounce: mis-thos'
Origin: apparently a primary word
: but
de (Greek #1161)
but, and, etc.
KJV usage: also, and, but, moreover, now (often unexpressed in English).
Pronounce: deh
Origin: a primary particle (adversative or continuative)
if
ei (Greek #1487)
if, whether, that, etc.
KJV usage: forasmuch as, if, that, (al-)though, whether. Often used in connection or composition with other particles, especially as in 1489, 1490, 1499, 1508, 1509, 1512, 1513, 1536, 1537. See also 1437.
Pronounce: i
Origin: a primary particle of conditionality
against my will
akon (Greek #210)
unwilling
KJV usage: against the will.
Pronounce: ak'-ohn
Origin: from 1 (as a negative particle) and 1635
, a dispensation
oikonomia (Greek #3622)
administration (of a household or estate); specially, a (religious) "economy"
KJV usage: dispensation, stewardship.
Pronounce: oy-kon-om-ee'-ah
Origin: from 3623
of the gospel is committed unto me
pisteuo (Greek #4100)
to have faith (in, upon, or with respect to, a person or thing), i.e. credit; by implication, to entrust (especially one's spiritual well-being to Christ)
KJV usage: believe(-r), commit (to trust), put in trust with.
Pronounce: pist-yoo'-o
Origin: from 4102
.