The story
- Old English · inherited frominfær“ingress, entrance, ingang”
- Middle English · inherited frominfer“entrance”
- English todayinfare
From Middle English infer (“entrance”), from Old English infær (“ingress, entrance, ingang”), from Proto-Germanic *in + *farą (“a going”), corresponding to in- + fare. Related to Old English infaru (“inroad, incursion, invasion”). Compare German einführen (“to introduce”).
Etymology from Wiktionary, CC BY-SA 4.0.