questioner vs querier

questioner and querier both are nouns.

Word	Noun	Adjective	Verb	Adverb
questioner	Yes	No	No	No
querier	Yes	No	No	No

As nouns, questioner and querier are synonyms defined as:

Other synonyms of questioner include asker, enquirer, inquirer.

questioner (noun)	querier (noun)
someone who asks a question	someone who asks a question