kopos (Greek #2873)
a cut, i.e. (by analogy) toil (as reducing the strength), literally or figuratively; by implication, pains
KJV usage: labour, + trouble, weariness.
Pronounce: kop'-os
Origin: from 2875
autos (Greek #846)
the reflexive pronoun self, used (alone or in the comparative 1438) of the third person , and (with the proper personal pronoun) of the other persons
KJV usage: her, it(-self), one, the other, (mine) own, said, (self-), the) same, ((him-, my-, thy- )self, (your-)selves, she, that, their(-s), them(-selves), there(-at, - by, -in, -into, -of, -on, -with), they, (these) things, this (man), those, together, very, which. Compare 848.
Pronounce: ow-tos'
Origin: from the particle αὖ (perhaps akin to the base of 109 through the idea of a baffling wind) (backward)