Where does “koŝmaro” come from?

koŝmaro (Esperanto) comes from Russian кошма́р, from French cauchemar, from Middle French cauchemare, from Old French cauquemare, from Norman cauche, from Old French chauce, from Vulgar Latin calcea, from Latin calceus — small stone, pebble; gravel, rubble.

koŝmaro (Esperanto): nightmare

Definitions

  1. nightmare

Ancestry of “koŝmaro”, step by step

koŝmaro traces back through 3 separate lines of ancestry.

via Russian кошма́р

StepLanguageWordMeaning
1Russianкошма́рnightmare
2Frenchcauchemarnightmare
3Middle Frenchcauchemarenightmare
4Old Frenchcauquemarenightmare
5Normancauchestocking
6Old Frenchchaucestocking
7Vulgar Latincalceagarment covering foot and leg
8Latincalceusshoe
9Latincalxlimestone; chalk; the finish line
10Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via Polish koszmar

StepLanguageWordMeaning
1Polishkoszmarnightmare

via Yiddish קאָשמאַר

StepLanguageWordMeaning
1Yiddishקאָשמאַרnightmare
Every word from Ancient Greek χάλιξ →Every word from Latin calx →Every word from Latin calceus →