תְּרַס ch., Af. אַתְרֵיס, Pa. תָּרֵיס same, 1) to shield. Targ. Job XLI, 7 מַתְרִיסִין Var. ed. Lag. (ed. תְּרֵיסִין noun). —2) to fight, challenge, oppose. Y. Ab. Zar. II, 41ᵇ top ולא על יאות … מְתָרֵס לקיבליה but R. Ḥ. opposed him improperly; Y. Dem. III, 23ᶜ bot. ולא עאל יאות … מַתְרִיס לקבל (corr. acc.). Y. Gitt. III, 44ᵈ לא דריש לקיש מַתְרִיס לקבל וכ׳ not that R. L. opposed R. J. because they differed in theory, but &c. Tam. 32ᵃ מה דין אַתְרִיסְתּוּן לקבלי (Rashi אִיתְרִ׳ Ithpe.) why, now, did you oppose me? —3) to put on armor. Y. Kidd. III, 63ᵈ והוה … מתרס כליו וכ׳ and R. Ḥ. put his armor on against (took up a debate with) &c.
    Ithpe. - אִיתְרִיס same, to oppose. B. Bath. 111ᵃ השתא איכו נח … אִיתְרִיסַת לקבלי Ms. M. (ed. השתא כי) now if R. H. were dead, you might have opposed me (by referring to his authority).