Prov. 18:9 KJV (With Strong’s)

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9
He also that is slothful
raphah (Hebrew #7503)
to slacken (in many applications, literal or figurative)
KJV usage: abate, cease, consume, draw (toward evening), fail, (be) faint, be (wax) feeble, forsake, idle, leave, let alone (go, down), (be) slack, stay, be still, be slothful, (be) weak(-en). See 7495.
Pronounce: raw-faw'
Origin: a primitive root
in his work
mla'kah (Hebrew #4399)
properly, deputyship, i.e. ministry; generally, employment (never servile) or work (abstractly or concretely); also property (as the result of labor)
KJV usage: business, + cattle, + industrious, occupation, (+ -pied), + officer, thing (made), use, (manner of) work((-man), -manship).
Pronounce: mel-aw-kaw'
Origin: from the same as 4397
is brother
'ach (Hebrew #251)
a brother (used in the widest sense of literal relationship and metaphorical affinity or resemblance (like 1))
KJV usage: another, brother(-ly); kindred, like, other. Compare also the proper names beginning with "Ah-" or "Ahi-".
Pronounce: awkh
Origin: a primitive word
to him that is a great
ba`al (Hebrew #1167)
a master; hence, a husband, or (figuratively) owner (often used with another noun in modifications of this latter sense)
KJV usage: + archer, + babbler, + bird, captain, chief man, + confederate, + have to do, + dreamer, those to whom it is due, + furious, those that are given to it, great, + hairy, he that hath it, have, + horseman, husband, lord, man, + married, master, person, + sworn, they of.
Pronounce: bah'-al
Origin: from 1166
waster
shachath (Hebrew #7843)
to decay, i.e. (causatively) ruin (literally or figuratively)
KJV usage: batter, cast off, corrupt(-er, thing), destroy(-er, -uction), lose, mar, perish, spill, spoiler, X utterly, waste(-r).
Pronounce: shaw-khath'
Origin: a primitive root
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Cross References

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that is slothful.
is brother.

J. N. Darby Translation

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9
He also who is indolent in his work is brother of the destroyer.