I. verb — [with obj.] ( accustom someone/thing to) 1. make someone or something accept (something) as normal or usual • I accustomed my eyes to the lenses
• [with obj. and infinitive]
sixth-form education is supposed to accustom pupils to think for themselves.
2. ( be accustomed to) — be used to • I am not accustomed to having my word questioned.
– origin late Middle English: from Old French acostumer, from a- (from Latin ad ‘to, at’) + costume ‘custom’.