Page:Sanskrit Grammar by Whitney p1.djvu/182

 with तस् and नस्, and some are obscure); the others are few, and almost all made with the suffixes इस्  and उस्.

413. Their inflection is almost entirely regular. But masculine and feminine stems in अस् lengthen the vowel of the ending in nom. sing.; and the nom.-acc.-voc. pl. neut. make the same prolongation (of अ or इ  or उ ) before the inserted nasal.

414. Examples of declension. As examples we may take मनस् n. mind; अङ्गिरस्  m. Angiras; हविस्  n. oblation.