Where does “drat” come from?

drat (Dalmatian) comes from Late Latin drictus, from Latin dīrectus, from Latin dīrigō, from Latin dis-, from Latin calceus, from Latin calx, from Ancient Greek χάλιξ — small stone, pebble; gravel, rubble.

drat (Dalmatian): straight

Definitions

straight

Ancestry of “drat”, step by step

Step	Language	Word	Meaning
1	Late Latin	drictus	—
2	Latin	dīrectus	laid straight, arranged in lines, having been arranged in lines
3	Latin	dīrigō	to lay straight; arrange in lines (especially in military contexts)
4	Latin	dis-	asunder, apart, in two; reversal, removal;...
5	Latin	calceus	shoe
6	Latin	calx	limestone; chalk; the finish line
7	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Every word from Ancient Greek χάλιξ →Every word from Latin dis- →Every word from Latin calx →