kiddushin en · NOUN
Etymology
From Jewish Babylonian Aramaic קידושין (literally “sanctifications”), plural of קידוש. Syntactically equivalent to, but differs in meaning from, Hebrew קִדּוּשִׁים.
Meanings
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(Judaism) An engagement (promise to marry) between a man and a woman, made by themselves or by relatives.
Just as Kiddushin takes place when the groom puts a ring on his bride's finger, so we, too, wind a strap around our finger and are sanctified unto the Holy One, blessed be He.
1996, Macy Nulman, The Encyclopedia of Jewish Prayer, page 218: