What is the origin of the weird phrase 'many a [singular noun]'? It's extremely odd: for one thing, 'many' here is a predeterminer (very unusual), for another, it goes with a singular noun. What is the explanation for this bizarre structure?
additional question you may not answer: Is it stylistically neutral? How would it sound to a native speaker's ear? Isn't it something literary?
GEN.der Männer"many of the man" is quite usual, though manch einer, mancher einer "many an" is as idiomatic as so mancher "so many; some,pl.some" and einige "some" (literally any, OE aenic). – vectory Jan 17 '20 at 04:19