Abbott-Smith Manual Greek Lexicon
ψευδ-άδελφος (G5569)
2 *† ψευδ-άδελφος , -ου, ὁ a false brother : of professing Christians, II Co 11:26 , Ga 2:4 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain
Strong's G5569 · Greek
ψευδάδελφος
pseudadelphos · psyoo-dad'-el-fos
from 5571 and 80; a spurious brother, i.e. pretended associate