Lexical Definition

‎ἀνεψιός‎ anepsiós (an-eps'-ee-os) cousin ^G:N-M
from ‎Α‎ (as a particle of union) and an obsolete (a brood)

sister's son.

• properly, akin, i.e. (specially) a cousin

Abbott-Smith

ἀνεψιός, -οῦ, ὁ (cf. Lat. nepos), [in LXX: Nu 36:11 (דּוֹד בֶּן), To 7:2 9:6 א*;]
a cousin: Col 4:10 (MM, VGT, s.v.).†

Abbott-Smith References

Liddell-Scott-Jones

ἀνεψιός-ός, ὁ,

first cousin, or generally, cousin, [ἀνεψιόςοῦ κταμένοιο 8th c.BC: Ilias Homerus Epicus “Illiad” 15.554, ={ἀνεψιόςόο κτ}.,compare 4th c.AD(?): Quintus Smyrnaeus Epicus 3.295">Refs 8th c.BC+].] (Cf. Sanskrit ναπᾱτ 'grandson', Latin nepos, etc.)