Querent as `one who seeks` is derived, according to the Oxford English Dictionary, from the Latin quærēns `seeker,` the present participle of quærere `to seek, gain, ask.` It is clear that Querent became used to denote `a person who questions an Oracle` because it is usually when you have a problem that requires Otherworldly advice that...
one who asks a question
• (n.) A complainant; a plaintiff. • (n.) An inquirer.
An inquirer; an individual or client who wants to receive information from a psychic nature.
Que'rent noun [ Latin querens , present participle of queri to complain.] (O. Eng. Law) A complainant; a plaintiff.