The affix ḍha comes in the sense of 'like this' after śilā,
Thus शिलेव = शिलेयं दधिः 'curd, hard as stone'. According to some, the affix ढञ् also comes after शिला, as शैलेयम् ॥,
Adhyāya 5 · Pāda 3 · Rule 102
The affix ḍha comes in the sense of 'like this' after śilā,
Thus शिलेव = शिलेयं दधिः 'curd, hard as stone'. According to some, the affix ढञ् also comes after शिला, as शैलेयम् ॥,