1) Alter 2) Change 3) Familiarise 4) Familiarize 5) French word used in English 6) Habituate 7) Inure 8) Make familiar 9) Modify 10) To be wont 11) To cause to accept 12) To cohabit 13) To get used to 14) To make familiar by use 
• (v. t.) To make familiar by use; to habituate, familiarize, or inure; -- with to. • (v. i.) To be wont. • (v. i.) To cohabit. • (n.) Custom.
Ac·cus'tom intransitive verb 1. To be wont. [ Obsolete] Carew. 2. To cohabit. [ Obsolete] « We with the best men accustom openly; you with the basest commit private adulteries. Milton. » Ac·cus'tom noun Custom. [ Obsolete] Milton. Ac·cus'tom transitive verb [ imperfect & past participle Accustomed ; present participle & verbal noun Accustoming .] [ Old French acostumer , acustumer , French accoutumer ; Ã (L. ad ) + Old Fren...
to familiarize by custom or use; habituate: to accustom oneself to cold weather.