aven

Borrowed from French aven.

aven (plural avens)

1. A vertical shaft leading upward from a cave passage, sometimes connecting with passages above.
2. A pothole.

• domepit

• Northern Caves, Vols 1-5. Dalesman Publishing, UK. passim

• Evan, Nave, Neva, Vena, nave, neva, vane

From Middle Breton avon, from Proto-Brythonic *aβon (“river”).

• avon

• IPA^(key): /ˈɑː.ven/

aven f (dual divaven, plural avenioù)

1. (archaic) river

From Occitan avenc, from Gaulish *abonā (“river”), from Proto-Celtic *abū (“river”). Compare Breton aven, avon.

• IPA^(key): /a.vɛn/

aven m (plural avens)

1. (geology, caving) pit cave, pit (natural cave with predominantly vertical shafts)

   Synonyms: gouffre, igue

2. (geology) sinkhole (US), swallow hole (UK)

• aven on the French Wikipedia.Wikipedia ^fr
• “aven” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

From English oven.

aven

1. oven