Where does “ersyn” come from?

ersyn (Manx) comes from Manx er, from Old Irish for, from Proto-Celtic *uɸer, from Proto-Indo-European upér, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

ersyn (Manx): third-person singular of er: on him/it

Definitions

third-person singular of er: on him/it

Ancestry of “ersyn”, step by step

Step	Language	Word	Meaning
1	Manx	er	on; onto; during
2	Old Irish	for	your; you; For quotations using this term, see...
3	Proto-Celtic	*uɸer	on, over, above
4	Proto-Indo-European	upér	above; over
5	Proto-Indo-European	upó	under, below
6	Proto-Indo-European	h₃ewp-	—

Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Proto-Indo-European upér →