Abbott-Smith Manual Greek Lexicon
εὔ-θυμος (G2115)
1 ** εὔ-θυμος , -ον [in LXX: II Mac 11:26 * ;] kind (Hom.). of good cheer (Æsch., al.): Ac 27:36 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain
Strong's G2115 · Greek
εὔθυμος
euthumos · yoo'-thoo-mos
from 2095 and 2372; in fine spirits, i.e. cheerful