From ess- + Proto-Celtic *guseti (compare do·goa), from Proto-Indo-European *ǵews-. The prefix is often replaced with ad-.
The derivation is very complicated. The following account of how the -si suffix appeared in Old Irish is implied by KPV:[1]
asa·gúsi (verbal noun aicsu)
For quotations using this term, see Citations:asagúsi.
1st sg. | 2nd sg. | 3rd sg. | 1st pl. | 2nd pl. | 3rd pl. | Passive sg. | Passive pl. | ||
---|---|---|---|---|---|---|---|---|---|
Present indicative | Deut. | ad·gúisiu, asa·gússim | ad·gúsi, asa·gúsi | assa·gússem | assa·gúiset, ad·gúset | ||||
Prot. | |||||||||
Imperfect indicative | Deut. | ad·gústis | |||||||
Prot. | |||||||||
Preterite | Deut. | ata·gegai (with infixed pronoun da-); at·gege (with infixed pronoun d-) | |||||||
Prot. | |||||||||
Perfect | Deut. | as·ruguset | |||||||
Prot. | |||||||||
Future | Deut. | ||||||||
Prot. | |||||||||
Conditional | Deut. | at·gegainn (with infixed pronoun d-) | at·gegmais (with infixed pronoun d-) | ||||||
Prot. | |||||||||
Present subjunctive | Deut. | asa·gú | ad·goa | assa·gúsea; ad·gó, ad·gúa; at·gó (with infixed pronoun d-) | as·ggustae | ||||
Prot. | |||||||||
Past subjunctive | Deut. | ||||||||
Prot. | |||||||||
Imperative | |||||||||
Verbal noun | aicsu | ||||||||
Past participle | ecguiste | ||||||||
Verbal of necessity |
radical | lenition | nasalization |
---|---|---|
asa·gúsi | asa·gúsi pronounced with /-ɣ(ʲ)-/ |
asa·ngúsi |
Note: Certain mutated forms of some words can never occur in Old Irish.
All possible mutated forms are displayed for convenience.