pertainym

noun

Etymology: Etymology tree English pertain Proto-Indo-European *h₁nómn̥ Proto-Hellenic *ónomə Ancient Greek ὄνῠμᾰ (ónŭmă)der. English -nym English pertainym From pertain + -nym.

1. A word, usually an adjective, which can be defined as "of or pertaining to" another word.