From Proto-Indo-European *(H)reydʰ-, cognate to Old English rīdan (whence English ride, from Proto-Germanic *rīdaną) and Lithuanian riedėti (“to roll”).[1]
*reideti
- to ride
| Suffixless preterite
|
| Active voice
|
|
|
Present
|
Imperfect
|
Future
|
Preterite
|
| 1st singular
|
*reidmi
|
*reidmam
|
*riritsū
|
*riroida
|
| 2nd singular
|
*reidsi
|
*reidtās
|
*riritsesi
|
*riroidas?
|
| 3rd singular
|
*reidti
|
*reidto
|
*riritseti
|
*riroide
|
| 1st plural
|
*reidmosi
|
*reidmo
|
*riritsomosi
|
*riroidmo
|
| 2nd plural
|
*reidtesi
|
*reidstē
|
*riritsetesi
|
*riroisse
|
| 3rd plural
|
*reidnti
|
*reidnto
|
*riritsonti
|
*riroidars
|
|
|
Pres. subjunctive
|
Past subjunctive
|
Imperative
|
|
| 1st singular
|
*reitsū
|
?
|
—
|
| 2nd singular
|
*reitsesi
|
?
|
*reid
|
| 3rd singular
|
*reitseti
|
?
|
*reidtou
|
| 1st plural
|
*reitsomosi
|
?
|
*reidmos
|
| 2nd plural
|
*reitsetesi
|
?
|
*reidte
|
| 3rd plural
|
*reitsonti
|
?
|
*reidntou
|
| Passive voice
|
|
|
Present
|
Imperfect
|
Future
|
Preterite
|
| 1st singular
|
*reidr
|
—
|
*riritsūr
|
—
|
| 2nd singular
|
*reidtar
|
—
|
*riritsetar
|
—
|
| 3rd singular
|
*reidtor
|
?
|
*riritsetor
|
—
|
| 1st plural
|
*reidmmor
|
—
|
*riritsommor
|
—
|
| 2nd plural
|
*reiddwe
|
—
|
*riritsedwe
|
—
|
| 3rd plural
|
*reidntor
|
?
|
*riritsontor
|
—
|
|
|
Pres. subjunctive
|
Past subjunctive
|
Imperative
|
|
| 1st singular
|
*reitsūr
|
—
|
—
|
| 2nd singular
|
*reitsetar
|
—
|
—
|
| 3rd singular
|
*reitsetor
|
—
|
—
|
| 1st plural
|
*reitsommor
|
—
|
—
|
| 2nd plural
|
*reitsedwe
|
—
|
—
|
| 3rd plural
|
*reitsontor
|
—
|
—
|
| Declension of the past participle
|
| masculine
|
singular
|
dual
|
plural
|
| nominative
|
*rissos
|
*rissou
|
*rissoi
|
| vocative
|
*risse
|
*rissou
|
*rissoi
|
| accusative
|
*rissom
|
*rissou
|
*rissoms
|
| genitive
|
*rissī
|
*rissous
|
*rissom
|
| dative
|
*rissūi
|
*rissobom
|
*rissobos
|
| instrumental
|
*rissū
|
*rissobim
|
*rissobis
|
| feminine
|
singular
|
dual
|
plural
|
| nominative
|
*rissā
|
*rissai
|
*rissās
|
| vocative
|
*rissā
|
*rissai
|
*rissās
|
| accusative
|
*rissam
|
*rissai
|
*rissams
|
| genitive
|
*rissās
|
*rissous
|
*rissom
|
| dative
|
*rissai
|
*rissābom
|
*rissābos
|
| instrumental
|
*?
|
*rissābim
|
*rissābis
|
| neuter
|
singular
|
dual
|
plural
|
| nominative
|
*rissom
|
*rissou
|
*rissā
|
| vocative
|
*rissom
|
*rissou
|
*rissā
|
| accusative
|
*rissom
|
*rissou
|
*rissā
|
| genitive
|
*rissī
|
*rissous
|
*rissom
|
| dative
|
*rissūi
|
*rissobom
|
*rissobos
|
| instrumental
|
*rissū
|
*rissobim
|
*rissobis
|
- ^ Matasović, Ranko (2009) Etymological Dictionary of Proto-Celtic (Leiden Indo-European Etymological Dictionary Series; 9), Leiden: Brill, →ISBN
