Genesis 7:23

וימח AND HE BLOTTED OUT — The word וימח is a Kal form and not a Niphal, and it is of the same grammatical form as ויפן and ויבן Every verb whose last root letter is ה, such as בנה, מחה, קנה when י and ו are perfixed, has Chireq as its vowel beneath the yod. אך נח means NOAH ONLY. This is its real meaning. But the Midrashic explanation is (Midrash Tanchuma, Noach 9) that he was coughing and spitting blood because of the trouble he had with the cattle and beasts (אך is taken as a מיעוט limitation, meaning to say that something is defective); others say, that he was once late in bringing food to a lion, so it struck him. Regarding him may the words be applied (Proverbs 11:31), “Behold, even the righteous is paid (for his evil deeds) in this world’’.

וַיִּ֜מַח אֶֽת־כׇּל־הַיְק֣וּם ׀ אֲשֶׁ֣ר ׀ עַל־פְּנֵ֣י הָֽאֲדָמָ֗ה מֵאָדָ֤ם עַד־בְּהֵמָה֙ עַד־רֶ֙מֶשׂ֙ וְעַד־ע֣וֹף הַשָּׁמַ֔יִם וַיִּמָּח֖וּ מִן־הָאָ֑רֶץ וַיִּשָּׁ֧אֶר אַךְ־נֹ֛חַ וַֽאֲשֶׁ֥ר אִתּ֖וֹ בַּתֵּבָֽה׃

And He destroyed every living substance which was upon the face of the ground, both man, and cattle, and creeping things, and the birds of the heaven; they were destroyed from the earth: and Noaĥ only remained alive, and they that were with him in the ark.