From Proto-Celtic *rādīti (compare Welsh (ad)rodd), from Proto-Indo-European *Hreh₁dʰ- (“to arrange”) (compare Sanskrit राध्नोति (rādhnoti), राध्यति (rādhyati, “to perform successfully”), Old Church Slavonic радити (raditi, “to take care of, work”), Gothic 𐍂𐍉𐌳𐌾𐌰𐌽 (rōdjan, “to talk”), Lithuanian rodýti (“to show”).
ráidid
| 1st sg. | 2nd sg. | 3rd sg. | 1st pl. | 2nd pl. | 3rd pl. | Passive sg. | Passive pl. | ||
|---|---|---|---|---|---|---|---|---|---|
| Present indicative | Abs. | radid (ráti with suffixed pronoun -i) | *radit | ||||||
| Conj. | ·ráidiu | ·rádi | ·rádi | ·radat | |||||
| Rel. | radas | ||||||||
| Imperfect indicative | ·radin | ||||||||
| Preterite | Abs. | *ráidis | |||||||
| Conj. | |||||||||
| Rel. | |||||||||
| Perfect | Deut. | ru·rádus | ro·rádis | ru·rádi | ro·ráitsem | ||||
| Prot. | |||||||||
| Future | Abs. | ||||||||
| Conj. | |||||||||
| Rel. | |||||||||
| Conditional | |||||||||
| Present subjunctive | Abs. | ||||||||
| Conj. | |||||||||
| Rel. | |||||||||
| Past subjunctive | |||||||||
| Imperative | ráid | ||||||||
| Verbal noun | rád | ||||||||
| Past participle | |||||||||
| Verbal of necessity | |||||||||
| radical | lenition | nasalization |
|---|---|---|
| ráidid also rráidid after a proclitic ending in a vowel |
ráidid pronounced with /r(ʲ)-/ |
unchanged |
Note: Certain mutated forms of some words can never occur in Old Irish.
All possible mutated forms are displayed for convenience.