Where does “tayo” come from?

tayo (Middle French) comes from Old French taho, from Old French ta, from Latin tua, from Latin tuus, from Proto-Italic towos, from Proto-Indo-European túh₂ — you, thou.

Ancestry of “tayo”, step by step

tayo traces back through 3 separate lines of ancestry.

via Old French taho

Step	Language	Word	Meaning
1	Old French	taho	—
2	Old French	ta	your
3	Latin	tua	inflection of tuus: ## nominative/vocative...
4	Latin	tuus	your
5	Proto-Italic	towos	your
6	Proto-Indo-European	túh₂	you, thou

via Old French tielau

Step	Language	Word	Meaning
1	Old French	tielau	—

via Old French ta ho

Step	Language	Word	Meaning
1	Old French	ta ho	—

Every word from Proto-Indo-European túh₂ →Every word from Proto-Italic towos →Every word from Latin tuus →