'ossify' is correct and usable in written English.
You can use it to refer to something becoming or growing rigid, inflexible, or unchanging. Example sentence: His views on the subject had ossified over the years.
Perhaps in the end the boutiques will themselves multiply and ossify into sterile chains.
Mr Whitacre's detailed account is worth reading, if only to show how the most magnificent system can ossify and corporate survival can sometimes come down to how well people confront difficult, often unquantifiable, choices.
The attacks didn't create their homophobia they're fully responsible for that but it did help ossify their self-righteousness, and it's part of why they now interpret criticism as a sign that they're doing the right thing.
And without such user input, a technology can quickly ossify.
At the same time, however, this concern with maintaining knowledge of the past must not ossify into a "short course" of propositions that trivialize that past or that prevent people from evolving in ways of their own choosing.
And ageing societies may ossify.
As the England side ossified in the way that all great teams do unless they pull off the rare trick of renewal from within – see the All Blacks or Sir Alex Ferguson's Manchester United sides for rare examples – so the ECB seemed to become warped out of shape.
Many say, however, that it has ossified into an organisation that purported to help the majority Malays gain a more equitable share of the nation's wealth but did more to allow an elite to line its pockets.
Mr Brown is now planning to collect signatures to put a tax increase on next year's ballot.Most blame, however, belongs not to any one person but to California's system of governance, which has ossified for decades.
By introducing competition within the system from foreign health providers, it has shaken up Britain's formerly ossified, consultant-controlled health market.
Takeover is not yet a Japanese word, but it is likely to become one soon.Contrary to popular belief, Japan's industrial landscape has not always been ossified.
