Accustom v. t. : To make familiar by use; to habituate, familiarize, or inure; -- with to.

Accustom v. i. : To be wont.

Accustom v. i. : To cohabit.

Accustom n. : Custom.

Example:
How do I get myself Accustom to extreme temperatures?

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Defination from the web:
accustom from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... Learn more about "accustom" and related topics at Britannica.com. Pronunciation Symbols. Share this entry: Link to this page: Cite this page: Products ...