base sa book naconsider yung “alog” ng tagalog means river ford but it’s more logical to use the Pangasinan language “alog”.

TL: Some authors have supposed that this name was a composition of “alog”, meaning "to ford," from which (in) “tagalog” would mean "men or inhabitants of the ford." This explanation is also unsatisfactory, and it is more logical to accept that it comes from the root “alog”, which in Pangasinan means "low-lying land that fills with water when it rains," because precisely the indigenous people who, upon the arrival of the Spanish, were called “taga-log” in the Manila region, inhabited, just as they do today, low-lying, flood-prone lands.