"investigator, inquirer, one who makes researches," 1610s, agent noun from research (v.).
"an inquirer," 1590s, originally in astrology, from Latin quaerentem, present participle of quaerere (see query (v.)). Earlier in legal language, "a plaintiff, a complainant" (1727). Querist "one who asks questions" is by 1630s.
"cheap car," later (after 1914) especially "Model-T Ford," by 1905, of uncertain origin. The word flivver was noted c. 1910 as a new theater slang word come into common use: "A flivver is something that is not a success, perhaps not an outright, hideous failure, but certainly a long way from the top." [Boston Globe, Feb. 20, 1910] A character in a comical column from The Philadelphia Inquirer of Aug. 16, 1909, says it is "... from the verb 'to fliv,' meaning a foul, a bungled miss."