וַיֹּ֣אמֶר יְהוָה֮ אֶל־מֹשֶׁה֒ אֱמֹ֣ר אֶֽל־אַהֲרֹ֗ן נְטֵ֤ה אֶת־יָדְךָ֙ בְּמַטֶּ֔ךָ עַל־הַ֨נְּהָרֹ֔ת עַל־הַיְאֹרִ֖ים וְעַל־הָאֲגַמִּ֑ים וְהַ֥עַל אֶת־הַֽצְפַרְדְּעִ֖ים עַל־אֶ֥רֶץ מִצְרָֽיִם׃
여호와께서 모세에게 이르시되 너는 바로에게 가서 그에게 이르기를 여호와의 말씀에 내 백성을 보내라 그들이 나를 섬길 것이니라
Ibn Ezra
ואנו And they shall lament; comp. באני In my sorrow (Deuter. 26:14); root און to lament, it is a weak verb (ע״ו); the accent is on the ultima. as in וסרו And shall depart (Exod. 8:1).25The laws of Hebrew accentuation demand that the bi-syllabic forms of verbs עֹוֹ and ע״ע should have the accent on the first syllable; אָנֽוּ is therefore an exception to the rule.