adeirrig

Etymology
The prefixes are either or. The root was formerly believed to be, from. Nowadays however an unrelated verb is instead reconstructed as the root of, in consideration of Brythonic relatives like 🇨🇬.

Verb

 * 1) to repeat
 * 2) to improve
 * 3) to repent
 * 4) to bring to repentance

Conjugation

 * Note: The present and past subjunctive are identical to the future and conditional, respectively.