abstinent
adjective/ˈæbstɪnənt/
/ˈæbstɪnənt/
(formal)- not allowing yourself something, especially alcoholic drinks, for moral, religious or health reasonsWord Originlate Middle English: via Old French from Latin abstinent- ‘abstaining’, from the verb abstinere, from ab- ‘from’ + tenere ‘hold’.
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abstinent