[995.] (1.) The following verbs in -ēre have a reduplicated perfect stem ([859]), and the perfect participle, when used, in -sus ([912]):
| mordeō, bite | mordēre | momordī | morsus |
The compound prae-mordeō has once ([823]) prae-morsisset (Plaut.).
| pendeō, am hung | pendēre | pependī | —— |
The compound prō-pendeō has the perfect participle prō-pēnsus.
| spondeō, covenant | spondēre | spopondī | spōnsus |
For dē-spondī and re-spondī, see [860]; rarely dē-spopondī (Plaut.).
| tondeō, shear | tondēre | -totondī, -tondī | tōnsus |
For dē-tondunt (Varr.), see [821]. Perfect only in the compounds at-tondī and dē-tondī ([860]); once dē-totonderat (Varr.), and perhaps dē-totondit (Enn.).
[996.] (2 a.) The following verbs in -ēre have a perfect stem consisting of a root which ends in -v- and has a long vowel ([864]), and the perfect participle, when used, in -tus: