Abbott-Smith Manual Greek Lexicon
ἀ-λυσιτελής (G255)
1 * ἀ-λυσιτελής , -ές , >(cf. λυσιτελέω ), unprofitable : He 13:17 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain
Strong's G255 · Greek
ἀλυσιτελής
alusiteles · al-oo-sit-el-ace'
from 1 (as a negative particle) and the base of 3081; gainless, i.e. (by implication) pernicious