Af‐fin″i‐ty (�), n.; pl.Affinities(�). [OF. afinité, F. affinité, L. affinites, fr. affinis. See Affined.]
1. Relationship by marriage (as between a husband and his wife's blood relations, or between a wife and her husband's blood relations); — in contradistinction to consanguinity, or relationship by blood; — followed by with, to, or between.
Solomon made affinity with Pharaoh.
1 Kings iii. 1.
2. Kinship generally; close agreement; relation; conformity; resemblance; connection; as, the affinity of sounds, of colors, or of languages.
There is a close affinity between imposture and credulity.
Sir G. C. Lewis.
2. Companionship; acquaintance.
About forty years past, I began a happy affinity with William Cranmer.
Burton.
4. (Chem.) That attraction which takes place, at an insensible distance, between the heterogeneous particles of bodies, and unites them to form chemical compounds; chemism; chemical or elective affinity or attraction.
5. (Nat. Hist.) A relation between species or highe� groups dependent on resemblance in the whole plan of structure, and indicating community of origin.
6. (Spiritualism) A superior spiritual relationship or attraction held to exist sometimes between persons, esp. persons of the opposite sex; also, the man or woman who exerts such psychical or spiritual attraction.