Where does “alidada” come from?

alidada (Spanish) comes from Arabic عِضَادَة, from Arabic عَضُد — upper arm.

Ancestry of “alidada”, step by step

Step	Language	Word	Meaning
1	Arabic	عِضَادَة	—
2	Arabic	عَضُد	upper arm

alidada — Etymology, Origin & Word History | Etymology Explorer