late 15c., from Late Latin sufficientia, from Latin sufficiens "adequate" (see sufficient) + -cy. Sufficience is from late 14c.
her father questioned the young suitor's sufficiency
there is more than a sufficiency of lawyers in this country
he questioned the sufficiency of human intelligence
suffer
sufferable
sufferance
suffering
suffice
sufficiency
sufficient
sufficiently
suffix
suffocate
suffocation
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