ערל שפתים. אֲטוּם שְׂפָתַיִם; וְכֵן כָּל לְשׁוֹן עָרְלָה אֲנִי אוֹמֵר שֶׁהוּא אָטוּם, "עֲרֵלָה אָזְנָם" (ירמיהו ו') – אֲטוּמָה מִשְּׁמֹעַ, "עַרְלֵי לֵב" (שם ט') – אֲטוּמִים מֵהָבִין, "שְׁתֵה גַּם אַתָּה וְהֵעָרֵל" (חבקוק ב') – וְהֵאָטֵם מִשִּׁכְרוּת כּוֹס הַקְּלָלָה, "עָרְלַת בָּשָׂר" – שֶׁהַגִּיד אָטוּם וּמְכֻסֶּה בָהּ, "וַעֲרַלְתֶּם עָרְלָתוֹ" (ויקרא י"ט) – עֲשׂוּ לוֹ אֹטֶם וּכְסוּי אִסּוּר שֶׁיַּבְדִּיל בִּפְנֵי אֲכִילָתוֹ, "שָׁלֹשׁ שָׁנִים יִהְיֶה לָכֶם עֲרֵלִים" (שם) – אָטוּם וּמְכֻסֶּה וּמֻבְדָּל מִלְּאָכְלוֹ:

ערל שפתים OF UNCIRCUMCISED LIPS — It really means obstructed as regards the lips. So, too, in respect to all forms derived from ערל I say that they signify obstructed. E. g. (Jeremiah 6:10) “their ear is עֲרֵלָה — stopped up so that it will not hear; (Jeremiah 9:25) “עַרְלִי in heart” — their hearts are closed so that they will not understand; (Habakkuk 2:16) “Drink thou, also וְהֵעָרֵל” — and become thou closed up (in thy senses) through intoxication caused by the cup of curse mentioned in that passage; the foreskin (ערלה) of the flesh is so called because the membrum is closed up and covered by it; (Leviticus 19:23) וערלתם ערלתו signifies, make for it (the tree) a closure (אוטם) and cover by means of an inhibition that will prove a barrier against eating it; (Leviticus 19:23 “Three years shall it be to you as ערלים” — it shall be closed up and covered and barred so that it many not be eaten.