Where does “úsáideoir” come from?

úsáideoir (Irish) comes from Irish úsáid, from Middle French usage, from Old French usage, from Old French -age, from Old Occitan -atge, from Latin -āticum.

úsáideoir (Irish): user

Definitions

user

Ancestry of “úsáideoir”, step by step

Step	Language	Word	Meaning
1	Irish	úsáid	verbal noun of úsáid; use, utilization, usage;...
2	Middle French	usage	habit; custom
3	Old French	usage	usage; use; habit; custom
4	Old French	-age	forms nouns with the sense of 'action or result...
5	Old Occitan	-atge	suffix used to form masculine nouns
6	Latin	-āticum	—

Every word from Latin -āticum →Every word from Old French -age →Every word from Old French usage →