Meaning

noun an abstraction belonging to or characteristic of two entities or parts together

noun the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur

noun a person related by blood or marriage

originFrom Middle English relacion, relacioun, from Anglo-Norman relacioun and Old French relacion (whence French relation), from Latin relātiō, noun of process form from perfect passive participle relātus (“related”), from verb referō (“to refer, to relate”), from prefix re- (“again”) + ferō (“to bear, to carry”). By surface analysis, relate + -ion. Doublet of relazione.

Etymology from Wiktionary, CC BY-SA 3.0