Main Entry: os·si·fy

Pronunciation: \ˈä-sə-ˌfī\

Function: verb

Inflected Form(s): os·si·fied; os·si·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 changetransitive verb 1 : to change (as cartilage) into bone
2 : to make rigidly conventional and opposed to change