The affix khac comes after the verb bhū 'to be' when in composition with the case-inflected word āśita 'satisfied by eating' and the sense is that of instrument or condition.,
The word 'सुपि' of sutra 4 is understood here.
Thus आशिसम्भवः meaning 'food', literally that by which one is satiated. आशिती भवती अनेन. Here the word denotes instrument. And आशितसम्भवः also means 'satiety', which denotes condition.,