וְאֶת־הָֽאַרְוָדִ֥י וְאֶת־הַצְּמָרִ֖י וְאֶת־הַֽחֲמָתִ֑י וְאַחַ֣ר נָפֹ֔צוּ מִשְׁפְּח֖וֹת הַֽכְּנַעֲנִֽי׃
Y al Aradio, y al Samareo, y al Amatheo: y después se derramaron las familias de los Cananeos.
Rashi on Genesis
ואחר נפוצו AND AFTERWARDS WERE SPREAD ABROAD — From these many families were spread abroad (besides those already mentioned. 5:15—18).
Radak on Genesis
ואחר נפוצו, after the languages were confused.
Siftei Chakhamim
Many families. ואחר נפצו cannot refer to the above-mentioned descendants of Canaan, [saying that they spread across the earth,] for then it should say just ואחר נפצו and omit משפחות הכנעני. For it clearly would refer back to those above. Perforce, it says משפחות הכנעני to tell us that “from these, many other families branched out.” This is similar to Noach’s three sons [from whom many families branched out]. (Re’m)