עָרַב I (b. h.; cmp. אָרַב) [to insert, press into, interweave,] 1) to mix, confuse. Yalk. Deut. 808 עָרְבוּ את העיסה (or עֵרְבוּ Pi.; not ערכו), v. עִיסָה. —2) [to substitute, put in place of,] to vouch for. Cant. R. to I, 4 אבותינו עוֹרְבִים אותנו let our ancestors be our surety (for our observance of the Law); Yalk. Cant. 982. Deut. R. s. 3 מבקשים אתם שנַעֲרוֹב אתכס וכ׳ do you want us to guarantee to you that, if you separate your tithes properly, the mice will not attack your grain any more? Ib. ע׳ אותן והלכו he did guarantee to them, and the mice went &c. Tanḥ. Vayigg. 5 מפני מה לא עָרַבְתָּ את וכ׳ why didst thou not pledge thyself for thy brother &c?; a. fr.
    Pi. - עֵירֵב 1) to mix. Gitt. 52ᵇ שמואל אמר מְעָרֵב Samuel explains (המנסך ib. V, 4, v. נָסַךְ), he who mixes forbidden wine with his neighbor’s permitted wine. Koh. R. to IX, 13, a. e. המערב מים ביין וכ׳ who puts water into wine &c., v. גְּלַבְקְיָא. M. Kat. 8ᵇ אין מְעָרְבִין שמחה בשמחה you must not mix one rejoicing with another (e.g. celebrate a wedding during the Festive Week); Gen. R. s. 70. Y. Ber. II, 4ᵈ top; Y. Meg. I, 71ᶜ עי׳ את האותיות if one made the letters of a word of uneven sizes (so that they are not in a line). Gen. R. s. 15 שלא לעָרֵב את האותיות he said המוציא in order not to confound the letters (by saying העולם מוציא); Y. Ber. VI, 10ᵃ bot. ראשי אותיות; a. fr.—Part. pass. מְעוּרָב; f. מְעוּרֶבֶת; pl. מְעוּרָבִים, מְעוּרָבִין; מְעוּרָבוֹת. Yalk. Deut. 808 וראה הפת מע׳ קיבר and saw that the bread was mixed with coarse flour. Erub. 27ᵃ כשקרבי דגים מע׳ בהן when entrails of fish are mixed up with the brine; a. e.—Lev. R. s. 20 (in Chald. dict.) מעורב, v. עַרְבֵּב. —2) (denom. of עֵירוּב 2) to lay an ʿErub, to create a symbolical community of residence or continuity of action. Erub. III, 1 מערבין לנזיר ביין you may use wine for an ʿErub for the benefit of a Nazarite. Ib. 84ᵇ; 87ᵇ עד שיְעָרְבוּ until they connect them symbolically by an ʿErub; a. v. fr.—Part. pass. as ab. Sabb. XVI, 3 חצר המע׳ a court which has been made available for Sabbath movements by means of an ʿErub; a. e. —3) to pledge. Part. pass. as ab. Esth. R. to I, 1 (ref. to בני התערבות, II Chr. XXV, 24) שהיו מְעוּרָבוֹתֵיהֶן של אבותיהן they were the hostages for their fathers.
    Hithpa. - הִתְעָרֵב,
    Nithpa. - נִתְעָרֵב to be mixed. Ḥull. VI, 5 דם שנ׳ במים if blood (which requires covering up, v. כִּיסּוּי) has been mixed with water. Tosef. Ter. V, 15 פרוסות … שנִתְעָרְבוּ וכ׳ if pieces of show-bread have become mixed up with a hundred times as many pieces of secular bread; Yeb. 81ᵇ פרוסה … שנִתְעָרְבָה וכ׳; Y. Orl. II, 61ᵈ bot. Cant. R. to I, 3 מה השמן הזה אין מִתְעָרֵב … אין מִתְעָרְבִים וכ׳ as oil cannot be mixed with other liquids, so Israel should not be mixed with the nations of the world; a. fr.