Where does “sinjoor” come from?

sinjoor (Dutch) comes from Spanish señor, from Old Spanish sennor, from Vulgar Latin senjor, from Latin senior, from Latin senex, from Proto-Indo-European sénos — old.

sinjoor (Dutch): A "true Antwerpian", according to various...

Definitions

A "true Antwerpian", according to various...

Ancestry of “sinjoor”, step by step

Step	Language	Word	Meaning
1	Spanish	señor	mister, sir, lord; gentleman; master
2	Old Spanish	sennor	lord
3	Vulgar Latin	senjor	master, elder, lord, nobleman
4	Latin	senior	older, elder; rather old; a lord, sir; an abbot
5	Latin	senex	old, aged, elderly; old person, old man, old...
6	Proto-Indo-European	sénos	old

Every word from Proto-Indo-European sénos →Every word from Latin senex →Every word from Latin senior →