ab·stain (āb-stān', əb-) intr.v. ab·stained, ab·stain·ing, ab·stains
[Middle English absteinen, to avoid, from Old French abstenir, from Latin abstinēre, to hold back : abs-, ab-, away; see ab-1 + tenēre, to hold; see ten- in Indo-European roots.] ab·stain'er n. |