groveller vs groveler

groveller and groveler both are nouns.

Word	Noun	Adjective	Verb	Adverb
groveller	Yes	No	No	No
groveler	Yes	No	No	No

As nouns, groveller and groveler are synonyms defined as:

groveller and groveler: someone who humbles himself as a sign of respect; who behaves as if he had no self-respect

Other synonyms of groveller include apple polisher, bootlicker, fawner, truckler.

groveller (noun)	groveler (noun)
someone who humbles himself as a sign of respect; who behaves as if he had no self-respect	someone who humbles himself as a sign of respect; who behaves as if he had no self-respect