Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
fitly is an adverb meaning "in accordance with what is appropriate or suitable for the circumstances". It carries one recorded sense.
in accordance with what is appropriate or suitable for the circumstances
“he was appropriately dressed”
“If you don't behave properly, you'll have to leave!”
“I met the junior senator from Illinois and I was duly impressed”
Definitions, synonyms and semantic relations for fitly come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.