ossify

[os-uh-fahy] /ˈɒs əˌfaɪ/
verb (used with object), ossified, ossifying.
1.
to convert into or cause to harden like bone.
verb (used without object), ossified, ossifying.
2.
to become bone or harden like bone.
3.
to become rigid or inflexible in habits, attitudes, opinions, etc.:
a young man who began to ossify right after college.
Origin
1705-15; < Latin ossi- (stem of os) bone + -fy
Related forms
ossifier, noun
unossifying, adjective
Examples from the web for ossify
  • Each of the lateral parts begins to ossify from a single center during the eighth week of fetal life.
British Dictionary definitions for ossify

ossify

/ˈɒsɪˌfaɪ/
verb -fies, -fying, -fied
1.
to convert or be converted into bone
2.
(intransitive) (of habits, attitudes, etc) to become inflexible
Derived Forms
ossifier, noun
Word Origin
C18: from French ossifier, from Latin os bone + facere to make
Word Origin and History for ossify
v.

1713, "to turn into bone," a back-formation from ossification, or else modeled on French ossifier (18c.) and formed from Latin os (genitive ossis) "bone" (see osseous) + -fy. Figurative sense is from 1858. Related: Ossified; ossifying.

ossify in Medicine

ossify os·si·fy (ŏs'ə-fī')
v. os·si·fied, os·si·fy·ing, os·si·fies
To change into bone.