Where does “quintessencial” come from?

quintessencial (Portuguese) comes from Portuguese -al, from Old Portuguese -al, from Latin -ālis, from Proto-Italic -ālis — forms relational adjectives.

quintessencial (Portuguese): quintessential

Definitions

quintessential

Ancestry of “quintessencial”, step by step

Step	Language	Word	Meaning
1	Portuguese	-al	appended to noun X, forms adjectives meaning “of...
2	Old Portuguese	-al	—
3	Latin	-ālis	—
4	Proto-Italic	-ālis	forms relational adjectives

Every word from Proto-Italic -ālis →Every word from Latin -ālis →Every word from Portuguese -al →