From Middle Welsh ystyr, from Latin historia (“story”), from Ancient Greek ἱστορία (historía).
ystyr m or f (plural ystyron)
ystyr (first-person singular present ystyriaf)
| singular | plural | impersonal | ||||||
|---|---|---|---|---|---|---|---|---|
| first | second | third | first | second | third | |||
| present indicative/future | ystyriaf | ystyri | ystyria | ystyriwn | ystyriwch | ystyriant | ystyrir | |
| imperfect (indicative/subjunctive)/conditional | ystyriwn | ystyrit | ystyriai | ystyriem | ystyriech | ystyrient | ystyrid | |
| preterite | ystyriais | ystyriaist | ystyriodd | ystyriasom | ystyriasoch | ystyriasant | ystyriwyd | |
| pluperfect | ystyriaswn | ystyriasit | ystyriasai | ystyriasem | ystyriasech | ystyriasent | ystyriasid, ystyriesid | |
| present subjunctive | ystyriwyf | ystyriech | ystyrio | ystyriom | ystyrioch | ystyriont | ystyrier | |
| imperative | — | ystyria | ystyried | ystyriwn | ystyriwch | ystyrient | ystyrier | |
| verbal noun | ystyr | |||||||
| verbal adjectives | ystyriedig — | |||||||
| Inflected colloquial forms | singular | plural | ||||
|---|---|---|---|---|---|---|
| first | second | third | first | second | third | |
| future | ystyria i, ystyriaf i | ystyri di | ystyrith o/e/hi, ystyriff e/hi | ystyriwn ni | ystyriwch chi | ystyrian nhw |
| conditional | ystyriwn i, ystyriswn i | ystyriet ti, ystyriset ti | ystyriai fo/fe/hi, ystyrisai fo/fe/hi | ystyrien ni, ystyrisen ni | ystyriech chi, ystyrisech chi | ystyrien nhw, ystyrisen nhw |
| preterite | ystyriais i, ystyries i | ystyriaist ti, ystyriest ti | ystyriodd o/e/hi | ystyrion ni | ystyrioch chi | ystyrion nhw |
| imperative | — | ystyria | — | — | ystyriwch | — |
| Note: All other forms are periphrastic, as usual in colloquial Welsh. | ||||||
| Welsh mutation | |||
|---|---|---|---|
| radical | soft | nasal | h-prothesis |
| ystyr | unchanged | unchanged | hystyr |
| Note: Some of these forms may be hypothetical. Not every possible mutated form of every word actually occurs. | |||