Where does “siorulo” come from?

siorulo (Ido) comes from Ido sioro, from French sieur, from Old French sire, from Vulgar Latin seior, from Latin senior, from Latin senex, from Proto-Indo-European sénos — old.

siorulo (Ido): sir, Mr

Definitions

sir, Mr

Ancestry of “siorulo”, step by step

Step	Language	Word	Meaning
1	Ido	sioro	sir, Mr; madam, Ms
2	French	sieur	sir, Mr., lord; title of respect for a man
3	Old French	sire	nominative singular of sieur; master, sir, lord;...
4	Vulgar Latin	seior	—
5	Latin	senior	older, elder; rather old; a lord, sir; an abbot
6	Latin	senex	old, aged, elderly; old person, old man, old...
7	Proto-Indo-European	sénos	old

Every word from Proto-Indo-European sénos →