supposedly

As a noun taxonomy

is the science or the technique used to make a classification.

As an adverb supposedly is

as a matter of supposition; in the beliefs or according to the claims of some people.

is likely misspelled.

has no English definition.

As an adverb supposedly

is as a matter of supposition; in the beliefs or according to the claims of some people.

As adverbs the difference between probably and supposedly

is that probably is in all likelihood while supposedly is as a matter of supposition; in the beliefs or according to the claims of some people.

Allegedely is likely misspelled.

Allegedely has no English definition.

As an adverb supposedly

is as a matter of supposition; in the beliefs or according to the claims of some people.

Supposedly is a synonym of relatedly.

As adverbs the difference between supposedly and relatedly

is that supposedly is as a matter of supposition; in the beliefs or according to the claims of some people while relatedly is in a related manner.