troponymy vs troponomy

troponymy and troponomy both are nouns.

Word	Noun	Adjective	Verb	Adverb
troponymy	Yes	No	No	No
troponomy	Yes	No	No	No

As nouns, troponymy and troponomy are synonyms defined as:

troponymy and troponomy: the place names of a region or a language considered collectively

troponymy (noun)	troponomy (noun)
the place names of a region or a language considered collectively	the place names of a region or a language considered collectively
the semantic relation of being a manner of does something