Where does “principality” come from?

Principality comes from Middle English principalite, from Middle French principalté, denoting supreme power or the territory of a prince.

principality (English): A region or sovereign nation headed by a prince...

Definitions

Step	Language	Word	Meaning
1	Middle English	principalte	—
2	Middle French	principalté	—
3	Late Latin	principalitas
4	Latin	principālis	—
5	Latin	prīncipium	—
6	Latin	prīnceps	—
7	Latin	primoceps	—
8	Latin	capiō	—
9	Proto-Italic	kapiō	take
10	Proto-Italic	kapjō	take, seize
11	Proto-Indo-European	kh₂pyéti	—
12	Proto-Indo-European	keh₂p-	to seize, grab; to seize; take up; lift; to take,...