The affix ṣṭhal comes in the sense of 'who dwells there' after the word āvasatha in the Locative -7th case in construction.,
The ल् of ष्ठल् is for accent (VI. I. 193), the ष् is for ङीष् 4.1.41. Thus आवसथे वसति = आवसथिकः 'who dwells in a house' i. e. a domestic person as opposed to an ascetic. The feminine will be आवसथिकी ॥ So far was the scope of ठक् as ordained in 4.4.1. Henceforward other affixes will be ordained.,