to- + Proto-Celtic *guseti, from Proto-Indo-European *ǵéwseti, from Proto-Indo-European *ǵews-.
The future and preterite passive forms are analogical after do·gní (“to do”). The preterite 3sg. do·roígu also shows analogy with that verb; a preform *do·gú compared to do·gní (preterite 3sg. do·génai) would have an expected *do·roíge reformed to do·roígu to match. The present stem, including do·goa itself, was secondarily back-formed from the subjunctive stem as it was converted from an s-subjunctive to an a-subjunctive.[1]
do·goa (verbal noun togu)
1st sg. | 2nd sg. | 3rd sg. | 1st pl. | 2nd pl. | 3rd pl. | Passive sg. | Passive pl. | ||
---|---|---|---|---|---|---|---|---|---|
Present indicative | Deut. | do·goïm | do·goï | do·goa, do·gó | do·goat | ||||
Prot. | |||||||||
Imperfect indicative | Deut. | ||||||||
Prot. | |||||||||
Preterite | Deut. | ||||||||
Prot. | |||||||||
Perfect | Deut. | do·roíga | do·roíga | do·roígu | do·roígaid | do·roígatar | do·rogad, do·roígad | ||
Prot. | |||||||||
Future | Deut. | do·gega, do·gegai | do·gegat | ||||||
Prot. | |||||||||
Conditional | Deut. | do·gegainn | do·gegad | ||||||
Prot. | |||||||||
Present subjunctive | Deut. | do·goa | |||||||
Prot. | |||||||||
Past subjunctive | Deut. | do·goad | |||||||
Prot. | |||||||||
Imperative | tog, toga | togaid | |||||||
Verbal noun | togu | ||||||||
Past participle | tuicse; togaide | ||||||||
Verbal of necessity |
radical | lenition | nasalization |
---|---|---|
do·goa | do·goa pronounced with /-ɣ(ʲ)-/ |
do·ngoa |
Note: Certain mutated forms of some words can never occur in Old Irish.
All possible mutated forms are displayed for convenience.