Lexical Definition

‎פָּסַס‎ pâçaç (paw-sas') to disappear ^H:V
a primitive root

cease.

• probably to disperse, i.e. (intransitive) disappear

1) to disappear, vanish, cease, fail
1a) (Qal) to vanish

Brown-Driver-Briggs

II. [‎פָסַס‎] verb disappear, vanish (si vera lectio, compare Assyrian pasâsu, do away, blot out (especially sins)); —

Qal Perfect 3 plural ‎פַּסּוּ מִן‎ Ps 12:2* the faithful have vanished (Che Dr) from (among) . . . men; Lag^{Proph. Chald. xivi} Gr We Du read ‎אָֽפְסוּ‎ (Isa 16:4).

Brown-Driver-Briggs References