Where does “acromegalia” come from?

acromegalia (Latin) comes from Ancient Greek ἄκρον, from Ancient Greek ᾰ̓́κρος — outermost; pointed, sharp; topmost.

Ancestry of “acromegalia”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἄκρον	peak; headland, cape; end, extremity
2	Ancient Greek	ᾰ̓́κρος	outermost; pointed, sharp; topmost

acromegalia — Etymology, Origin & Word History | Etymology Explorer