fitly vs befittingly

fitly and befittingly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
fitly	No	No	No	Yes
befittingly	No	No	No	Yes

As adverbs, fitly and befittingly are synonyms defined as:

fitly and befittingly: in accordance with what is appropriate or suitable for the circumstances

Other synonyms of fitly include appropriately, duly, fittingly, properly, suitably.

fitly (adverb)	befittingly (adverb)
in accordance with what is appropriate or suitable for the circumstances	in accordance with what is appropriate or suitable for the circumstances