מחַק (cmp. מָחָה) 1) to rub out, blot out. Sabb. VII, 2 המוֹחֵק ע"מ וכ׳ he who rubs out in order to write over the erasure. Sot. 18ᵃ כתב אות אחת ומ׳ וכ׳ if he wrote (the adjuration of the Sotah) by writing and washing off letter by letter. Ib. ומְחָקָן לתוך וכ׳ and washed them off in one cup. Sabb. 75ᵇ מ׳ אות גדולה if he erased one large letter. Ib. זה חומר במוֹחֵק וכ׳ in this case he who erases, is more severely dealt with than he who writes (on the Sabbath); a. fr.—Part. pass. מָחוּק. Ab. IV, 20 נייר מ׳ erased papyrus (palimpsest). —2) to scrape, smooth. Sabb. VII, 2 (73ᵃ) המעבד … והמוֹחֲקוֹ Mish. a. Y. ed. (Bab. והמְמַחֲקוֹ) he who tans its skin, and he who scrapes it. Y. ib. 10ᶜ bot. חייב משום מוחק is guilty of an act coming under the category of scraping. Ib. 10ᵃ המוֹחֲקָהּ he who planes the beam; a. fr. —3) to level, strike. B. Bath. V, 11 לִמְחוֹק … יִמְחוֹק, v. גָּדַשׁ. Sabb. 153ᵇ; Tosef. ib. I, 17 מָחֲקוּ סאה they made the measure (of laws passed) just even (so that anything added would make it overflow), opp. גָּדַשׁ; Y. ib. I, 3ᶜ; a. fr.—V. מְחוֹק.
    Nif. - נִמְחַק to be blotted out. Sot. II, 4, v. מָחָה. Ib. 18ᵃ קודם שנִמְחֲקָה מגילה before the roll (containing the adjuration of the Sotah) has been washed off. B. Bath. 164ᵃ נ׳ בן יומו an erasure of one day’s standing, נ׳ בן שני ימים an erasure two days old; a. e.
    Pi. - מִיחֵק to smooth, shave. Sabb. 73ᵃ, v. supra. Y. ib. VII, 10ᵈ top חייב משום מְמַחֵק is guilty of an act coming under the category of scraping; a. fr.