Impecunious >adj. having little of no money: a titled but impecunious family. 

Onomatopeic >n. the formation of a word from a sound associated with what is named (e.g., cuckoo, sizzle).

–the use of such words for rhetorical effect.

Winnow >v. 1 blow a current of air through (grain) in order to remove the chaff.

–remove (chaff) from grain: women winnow the chaff from piles of unhusked rice.

–reduce the number in a set of (people or things) gradually until only the best ones are left: the contenders had been winnowed to five.

–find or identify (a valuable or useful part of something): amidst this welter of confusing signals, it’s difficult to winnow out the truth.

–identify and remove (the least valuable or useful people or things): guidelines that would help winnow out those not fit to be soldiers.