Definition of langue d'oïl in English:

langue d'oïl

noun

  • The form of medieval French spoken north of the Loire, generally characterized by the use of oïl to mean ‘yes,’ and forming the basis of modern French.

Pronunciation

langue d'oïl

/ˌläNG(ɡə) ˈdoi(l)/ /ˌlɑŋ(ɡə) ˈdɔɪ(l)/

Origin

From Old French langue ‘language’ (from Latin lingua ‘tongue’), d' (from de ‘of’), and oïl (from Latin hoc ille) ‘yes’. Compare with langue d'oc.