קַיָּים, (קוּם) existing, enduring, lasting; valid. Ber. 32ᵃ מה … חי וק׳ … אף שבועתך ק׳ וכ׳ as thy great name lives and endures for ever and ever, so thy oath holds good for ever and ever; opp. בָּטֵל. Ned. 62ᵃ. Y. Snh. II, 20ᵇ bot., a. e., v. מוֹנִיטָא. Ned. 69ᵃ ק׳ ליכי ק׳ ליכי if the husband said twice, thy vow is valid (confirmed by me), opp. מופר. Gitt. 88ᵃ ועדיין … ק׳ while those exiled under Jeconiah are yet alive; a. fr.—Pl. קַיָּימִים, קַיָּימִין; קַיָּימוֹת; קַיָּמ׳. B. Bath. VIII, 5, a. fr. דבריו ק׳ his words (testamentary dispositions) are valid, opp. לא אמר כלום. Sabb. 30ᵃ משה רבינו … וק׳ הם וכ׳ Moses, our teacher, has issued many decrees and introduced many institutions, and they endure for ever and ever; a. fr.