From Proto-Celtic *gʷedyeti (compare Old Irish guidid), from Proto-Indo-European *gʷʰédʰyeti (“to request, pray, ask for”).
gweddïo (first-person singular present gweddïaf)
| singular | plural | impersonal | ||||||
|---|---|---|---|---|---|---|---|---|
| first | second | third | first | second | third | |||
| present indicative/future | gweddïaf | gweddii | gweddïa | gweddïwn | gweddïwch | gweddïant | gweddiir | |
| imperfect (indicative/subjunctive)/conditional | gweddïwn | gweddiit | gweddïai | gweddïem | gweddïech | gweddïent | gweddiid | |
| preterite | gweddïais | gweddïaist | gweddïodd | gweddïasom | gweddïasoch | gweddïasant | gweddïwyd | |
| pluperfect | gweddïaswn | gweddïasit | gweddïasai | gweddïasem | gweddïasech | gweddïasent | gweddïasid, gweddïesid | |
| present subjunctive | gweddïwyf | gweddïech | gweddïo | gweddïom | gweddïoch | gweddïont | gweddïer | |
| imperative | — | gweddïa | gweddïed | gweddïwn | gweddïwch | gweddïent | gweddïer | |
| verbal noun | gweddïo | |||||||
| verbal adjectives | gweddiedig gweddiadwy | |||||||
| Inflected colloquial forms | singular | plural | ||||
|---|---|---|---|---|---|---|
| first | second | third | first | second | third | |
| future | gweddïa i, gweddïaf i | gweddii di | gweddiith o/e/hi, gweddiiff o/e/hi | gweddïwn ni | gweddïwch chi | gweddïan nhw |
| conditional | gweddïwn i, gweddiswn i | gweddïet ti, gweddiset ti | gweddïai fo/fe/hi, gweddisai fo/fe/hi | gweddïen ni, gweddisen ni | gweddïech chi, gweddisech chi | gweddïen nhw, gweddisen nhw |
| preterite | gweddïais i, gweddïes i | gweddïaist ti, gweddïest ti | gweddïodd o/e/hi | gweddïon ni | gweddïoch chi | gweddïon nhw |
| imperative | — | gweddïa | — | — | gweddïwch | — |
| Note: All other forms are periphrastic, as usual in colloquial Welsh. | ||||||
| radical | soft | nasal | aspirate |
|---|---|---|---|
| gweddïo | weddïo | ngweddïo | unchanged |
Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.