v.
Pronunciation: ' ä-s ə - ˌ f ī
Function: verb
Inflected Form: -fied ; -fy · ing
Etymology: Latin oss-, os + English -ify
Date: 1713
intransitive verb
1 : to change into bone
2 : to become hardened or conventional and opposed to change
transitive verb
1 : to change (as cartilage) into bone
2 : to make rigidly conventional and opposed to change