In epistemology, it seems to mean `invalidation’, whereas in deontics, it means `suspension’ (which could be again brought back to use). Could the two be reconciled? Yes, if only one considers that within the svataḥ prāmāṇya framework any invalidation is necessarily temporary.

As for Śabara’s vs Kumārila’s use of bādha, the first thing one notices is that Śabara deals with bādha within the latter part of the PMS-Bhāṣya, namely within the discussion of vikṛti ‘ectype’ rituals. That is, Śabara primarily discusses bādha as the blocking mechanism in case something of the archetype ritual does not extend to the ectype one. Therefore, Kumārila has to invent a new space for bādha while commenting on the balābala-adhikaraṇa within the first group of books in the PMS-Bhāṣya. There, Kumārila treats bādha as a general device, not related to the prakṛti-to-vikṛti extension. This treatment is then adopted also by later Mīmāṃsā authors (MBP, MNS, Āpadevī etc.).

Jhā (1942, chapter XXIX) mixes the two understandings insofar as he calls bādha `exclusion’ and introduces it as part of the prakṛti-to-vikṛti extension of details (corresponding to its role in the ŚBh), but then moves on (from end of p. 342 onwards) and discusses it in the light of later sources, influenced by Kumārila’s approach.