pavaḍḍhati

to grow up, to increase MN.i.7; SN.ii.84, SN.ii.92; Snp.306 (3rd sg. praet. ˚atha); Dhp.282, Dhp.335 Dhp.349; Pp.64; Pv-a.8 (puññaṃ)
pp pavaḍḍha pavuddha.

pa + vṛdh