Strong's G2873 — κόπος (noun)
kopos (kop'-os) n.
1. a cut
2. (by analogy) toil (as reducing the strength)
3. (by implication) pains
{literally or figuratively}
[from G2875]
KJV: labour, + trouble, weariness 
Root(s): G2875 
Compare: G2872, G3449 
Hebrew root: κόπτω
Occurrences: 18