1st person singular present indicative of saṁvaḍḍhati (corrected from saṁvaḍḍhāni); causative form
Analysis. saṁ + vaḍḍhati; the prefix saṁ (together, completely) combines with vaḍḍhati (to grow or increase), yielding the sense of cumulative growth or development brought to completion.
Etymology. vaḍḍhati is cognate with Sanskrit vardhati (to grow, increase), from the Indo-European root *werdh- (to grow, turn); the causative force here reflects Pali's productive causative formations. The prefix saṁ reflects Indo-European *sem- (together, same), seen also in English same and Latin similis.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
Lite mode — plain HTML for e-readers and old browsers. Full version