Pasig River

[TaramKalis]

I been looking at the map of the Philippines and I was curious of why it was called the Pasig river. Out of curiosity I found the word "Pasig" in the dictionary. This post are merely for reading material and not claiming that the pasig river was named by Kapampangans. Ala sanang gumaga kening post ku ne.
Source: Kapampangan Spanish dictionary by Fray Diego Bergano 1732.

A map of the original geography of Pampanga, The Pampangans by Larkin 1972

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pasig. ft. sandy bank, shore of the sea, river,
or sapa, stream. Pasigan, adjective. Mi,
with an, and manga with an. Dalampasig;
said of a wide shore (beach), solely of the
sea. I I Pasig, a baranggay in Candaba,
Pampanga; a city in Metro Manila,

dalampasig. n. sand bank along the sea, beach,
or river bank, like, the one they have on
the beaches or seashores of Manila. See
Aplaya.

Manibaug. n. abaranggay of Porac, Pampanga;
site of the Parish of San Ignacio de
Loyola. Its western portion, Manibaug
Pasig, togther with baranggays Mitla and
Mancatian were buried in lahar in the
1990's.

[EzekielCharlemagne]

wa pin ne, What does pasig mean in Tagalog?

[Faith15]

I am curious din pu, bala ku sa tagalog ya.