פצ
'pex' (pronounced 'petz') means “satisfy” and can take verb or adjective forms. It appears most often with a 'ha' prefix (הפצ)1), but sometimes in a bare root form (פצ)2) where it almost always occurs in the phrase פצ פי. This phrase appears to be idiomatic with a meaning that is not well understood. It's literal translation would be “satisfy the teeth”.
LexID 2654, 6475