תָּדִיר, (דּוּר) = תָּמִיד, stationary, constant, regular. Pes. 114ᵃ ברכת היין ת׳ … ת׳ ושאינו ת׳ ת׳ קודם to say the blessing over wine is a constant duty, but the blessing over the day (festival) is not a constant (only a periodical) duty: where there is a constant duty and one not constant, the constant duty has the precedence; Tosef. ib. X, 3; Tosef. Ber. VI (V), 1; Y. ib. VIII, beg. 11ᵈ. Zeb. X, 1 כל הת׳ מחבירו וכ׳ that which is more constant than another thing has the precedence over the other thing: the daily offering precedes the Musaf, the Sabbath Musaf precedes that of the New Moon &c.; a. fr.—Pl. תְּדִירִין. Y. Taan. II, 65ᵈ bot. שהם ת׳ בעבודה because they are constantly on duty.—תְּדִירָה (adv.) steadily. Tosef. Ohol. XVI, 8; Tosef. Par. IV (III), 7, v. זָמַר II.