Strong's Greek #2990
ἔλαθόν

Englishman's Concordance (References)

ἔλαθόν elathon — 1 Occurrence

Hebrews 13:2 - V-AIA-3P
GRK:ταύτης γὰρ ἔλαθόν τινες ξενίσαντες
NAS: angels without knowing it.
KJV: have entertained angels unawares.
INT: this indeed unawares some have entertained