naturalize (v.)

• acclimate
• acclimatize
• accommodate
• acculturate
• accustom
• adapt
• adjust
• admit
• adopt
• affiliate
• assimilate
• become
• break
• change
• condition
• confirm
• convert
• domesticate
• domesticize
• establish
• familiarize
• fix
• gentle
• habituate
• harden
• housebreak
• inure
• make
• orient
• orientate
• reconvert
• render
• reverse
• season
• shift
• switch
• tame
• train
• transform