Where does “extrema-direita” come from?

extrema-direita (Portuguese) comes from Portuguese direita, from Old Portuguese dereito, from Vulgar Latin derectus, from Latin dīrectus, from Latin dīrigō, from Latin dis-, from Latin calceus, from Latin calx — small stone, pebble; gravel, rubble.

extrema-direita (Portuguese): far right

Definitions

far right

Ancestry of “extrema-direita”, step by step

extrema-direita traces back through two separate lines of ancestry.

via Portuguese direita

Step	Language	Word	Meaning
1	Portuguese	direita	right; feminine singular of direito
2	Old Portuguese	dereito	right
3	Vulgar Latin	derectus	directed, steered, guided, aligned, pointed,...
4	Latin	dīrectus	laid straight, arranged in lines, having been arranged in lines
5	Latin	dīrigō	to lay straight; arrange in lines (especially in military contexts)
6	Latin	dis-	asunder, apart, in two; reversal, removal;...
7	Latin	calceus	shoe
8	Latin	calx	limestone; chalk; the finish line
9	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

via Portuguese extremo

Step	Language	Word	Meaning
1	Portuguese	extremo	extreme
2	Latin	extrēmus	rear
3	Proto-Italic	eksterisemos	—

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