Strong's Concordance G431

Original Word: ἀνεψιός
Transliteration: anepsiós
Phonetic Spelling: an-eps'-ee-os
[ἀνεψιός] from G1 (as a particle of union) and an obsolete νέπος (a brood); properly, akin, i.e. (specially) a cousin

Usages throughout the bible

Colossians 4:10 - Aristarchus my fellowprisoner saluteth you, and Marcus, sister's son G431 to Barnabas, (touching whom ye received commandments: if he come unto you, receive him;)