141. Of the non-nasal mutes

Of the non-nasal mutes, only the first in each series, the non-aspirate surd, is allowed; the others — surd aspirate, and both sonants — whenever they would etymologically occur, are converted into this.

Thus, agnimát for agnimáth, suhṛ́t for suhṛ́d, vīrút for vīrúdh, triṣṭúp for triṣṭúbh.

a. In a few roots, when their final (sonant aspirate) thus loses its aspiration, the original sonant aspiration of the initial reappears; compare ह् h, below, 147.

Thus, dagh becomes dhak, budh becomes bhut, and so on.

The roots exhibiting this change are stated below, 155.

b. There was some question among the Hindu grammarians as whether the final mute is to be estimated as of surd or of sonant quality; but the great weight of authority, and the invariable practice of the manuscripts, favor the surd.