Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
laxly is an adverb meaning "in a permissively lenient manner". It carries one recorded sense.
in a permissively lenient manner
“he felt incensed that Tarrant should have been treated so leniently given his crime”
Definitions, synonyms and semantic relations for laxly come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. .