English

allofather

From allo- + father.

Proto-Indo-European *h₂el- ‘beyond, other’

Proto-Indo-European *h₂élyos ‘other, another’

Proto-Hellenic *áľľos

Ancient Greek ἄλλος ‘other’

English allo-

Proto-Indo-European *ph₂tḗr

Proto-Germanic *fadēr

Proto-West Germanic *fader

Old English fæder

Middle English fader ‘a father’

Today it means

noun A male alloparent

Language periods are conventional ranges, not dates for this word.

Etymograph / allofather