Where does “кошмаран” come from?

кошмаран (Serbo-Croatian) comes from Serbo-Croatian ко̏шма̄р, 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.

кошмаран (Serbo-Croatian): nightmarish

Definitions

nightmarish

Ancestry of “кошмаран”, step by step

Step	Language	Word	Meaning
1	Serbo-Croatian	ко̏шма̄р	—
2	French	cauchemar	nightmare
3	Middle French	cauchemare	nightmare
4	Old French	cauquemare	nightmare
5	Norman	cauche	stocking
6	Old French	chauce	stocking
7	Vulgar Latin	calcea	garment covering foot and leg
8	Latin	calceus	shoe
9	Latin	calx	limestone; chalk; the finish line
10	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Every word from Ancient Greek χάλιξ →