salty

the word "salty" is a straightforward english formation. its core, "salt," originates from proto-germanic saltą, which in turn derives from the proto-indo-european root séh₂l-s, meaning 'salt'. the adjectival suffix "-y," with its meaning of 'characterized by' or 'full of,' is also of ancient germanic lineage. the literal meaning, 'tasting of or containing salt,' has been in use since middle english. the modern informal sense, describing a person who is resentful or irritated, is a 20th-century semantic extension, metaphorically linking the sharp, biting taste of salt to a sharp, bitter attitude.

Structure: salt (noun) + y (adjective-forming suffix) "salt" is from old english "sealt," of germanic origin. "y" is a native english suffix from old english "-ig," used to form adjectives meaning "full of" or "characterized by."