Definition of affine
: a relative by marriage : in-law
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Origin and Etymology of affine
Anglo-French affin, from Latin affinis, from affinis related
First Known Use: circa 1509
2
affine
adjective
af·fine
Definition of affine
: of, relating to, or being a transformation (such as a translation, a rotation, or a uniform stretching) that carries straight lines into straight lines and parallel lines into parallel lines but may alter distance between points and angles between lines affine geometry
affinely
adverbOrigin and Etymology of affine
Latin affinis, adjective
First Known Use: 1896
Law Dictionary
affine
play
noun
af·fine
\a-ˈfīn, ə-\
Legal Definition of affine
: a relative by marriage — compare blood relative
affinal
\-ˈfī-nəl\ adjectiveOrigin and Etymology of affine
Middle French affin, from Latin affinis, from affinis related, from ad to + finis end, border
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