Two boys wearing yarmulkes.
yarmulke definition by Webster's New World
Origin: eastern; English Yiddish yarmulke ; from Polish jarmułka, origin, originally , a skullcap worn as by priests ; from earlier ja murka, ultimately ; from Midieval Latin almutia, cowl, hood
yarmulke definition by American Heritage Dictionary
Origin: Yiddish, from Polish and Ukrainian yarmulka, possibly from Turkish yağmurluk, rain clothing, from yağmur, rain.
yarmulke - Cultural Definition
In Orthodox Judaism and Conservative Judaism, a skullcap worn by men as a sign of reverence while praying to God or talking about him.