וּבְנֵ֖י גֹּ֑מֶר אַשְׁכֲּנַ֥ז וְדִיפַ֖ת וְתוֹגַרְמָֽה׃
און די זין פֿון גוֹמֶרן: אַשכּנַז, און ריפֿת, און תּוֹגַרמָה.
Rashi
Ashkenaz and Diphath (with a “daleth”), but in the Pentateuch it is written (Gen. 10:3): “... and Riphath,” because in the beginning they were weak (רָפִים), and they did not overpower Israel, but at the end they were filled with disgrace (דֹּפִי) and evil.