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1

affine

noun af·fine \ a-ˈfīn , ə- \

Definition of affine

: a relative by marriage : in-law

Origin and Etymology of affine

borrowed from Anglo-French affin, going back to Latin affīnis "neighbor, relation by marriage," noun derivative of affīnis "bordering (on), related by marriage" — more at affinity

2

affine

adjective

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

adverb

Origin and Etymology of affine

borrowed from New Latin affīnis, taken to mean "having affinity," going back to Latin, "bordering (on), connected (with)" — more at affinity

Law Dictionary

affine

noun af·fine \ a-ˈfīn, ə- \

legal Definition of affine

: a relative by marriage — compare blood relative
—

affinal

\-ˈfī-nəl\ adjective

Origin and Etymology of affine

Middle French affin, from Latin affinis, from affinis related, from ad to + finis end, border

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affine

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