335. The stems in i and u

Declension II.
Stems (of all genders) in इ i and उ u.

The stems in इ i and उ u are inflected in so close accordance with one another that they cannot be divided into two separate declensions. They are of all the three genders, and tolerably numerous—those in इ i more numerous than those in उ u, especially in the feminine (there are more neuters in उ u than in इ i).

a. The endings of this declension also differ frequently and widely from the normal, and the irregularities in the older language are numerous.