highness · noun1
- Middle English · inherited fromhyghnesse
- English todayhighness
Highness · noun2
- Late Latin · derived fromaltitia
- Italian · calque ofaltezza
- English todayHighness
Calque of Italian altezza, from Late Latin altitia, from altus + -itia, equivalent to high + -ness. See highness for formation of the English term.
Etymology from Wiktionary, CC BY-SA 4.0.