In a Sanskrit text probably originating in 13th-century Gujarat, I just came across this line:

yas tājikabhāṣāyāṃ sūkṣmasvāduś ca sahamasāda iti |

This is a reference to the Arabic term sahm as-saʿāda (the Lot of Fortune, an astrological concept). But I am puzzled by the designation sūkṣmasvādu, which I have never seen before that I can recall, and certainly not applied to an abstract concept. Does it ring a bell with anyone? Is it an idiomatic expression that I have failed to pick up?

Thanks in advance,
Martin Gansten