אחי, אָחָה (√חו, cmp. חבב) to unite. Part. pass. אָחוּי united. Num. R. s. 13, beg. שיהיו אֲחוּיִים אצלו they shall be united with him (around his table).
Pi. - אִיחָה to join; to sew together (with fine stitches); cmp. חוּט; חוּד I. Gen. R. s. 39 beg. אברהם שאֹ׳ את וכ׳ Abraham who united all mankind into a brotherhood (by the belief in one God), כזה שהוא מְאָחֶה וכ׳ like one who sews &c., v. infra. Ex. R. s. 40, end.—Esp. to mend, by stitching, the rent of the garment torn in mourning. M. Kat. 22ᵇ; a. fr. Ib. 26ᵃ לאַחוֹתָן to stitch them together.
Hithpa. a. Nithpa. - הִתְאָחֶה, נִתְאָחֶה 1) to be joined; to be stitched together. Num. R. s. 13, beg. (play on אחותי Cant. V, 1) נִתְאָחוּ לי וכ׳ they were joined to me (I joined them) in the captivity. Gen. R. s. 68 מִתְאָחוֹת, v. אֶבֶן. M. Kat. 26ᵃ אין מתאחין must not be stitched together. —2) to be joined by grafting, to grow together. Y. Kil. I, 27ᵃ top הן נתא׳ וכ׳ they (the two seeds) combine. Y. Shebi. II, end, 34ᵃ bot. Y. Orl. I, 61ᵃ bot.