The story
- Proto-Indo-European*h₂éd
- Proto-Italic*ad
- Latinad
- Old Frencha
- Proto-Indo-European*weyd-
- Proto-Indo-European*widtós
- Proto-Italic*wissos
- Latinvīsus
- Old Frenchvis
- Old Frenchavis
- Middle Englishavys
- English todayadvice
From Middle English avys, from Old French avis, rebracketed from the phrase ce m'est a vis (“I think”, “it seems to me”, literally “it is to my view”), where vis is from Latin vīsus (“vision, sight”). The unhistoric -d- was introduced during the 15th century due to influence from advise and ad-, see advance. Doublet of aviso. See vision, and compare avise, advise. Mostly displaced native Old English rǣd (see modern rede).
Words from the same roots
Middle Englishavys all →
Old Frenchavis all →
Etymology from Wiktionary, CC BY-SA 4.0.