בראשית נ:יא פירוש: רשב״ם, Rav Hirsch וחזקוני

וירא יושב הארץ הכנעני, as if the Torah had written וירא הכנעני יושב הארץ, “the Canaanite inhabitants of the land realised, etc.”

Also ein Grenzort des kanaanitischen Landes verewigte mit seinem Namen die Anerkennung, die ein jüdischer Stammvater in der Fremde gefunden hatte.

וירא יושב הארץ הכנעני, “the inhabitants of the land of the Canaanite tribes “saw;” the reference is to the Emorites under Sichon and to the ones under Og. They also called themselves “Canaanites.” Rashi explains thus in the Book of Numbers and in the Book of Judges and on several occasions.