absolutive (ind. aor.) of sacchikaroti
Analysis. sacchi- (one's own, personally) + -katvā (absolutive suffix); sacchi is the instrumental of sakkhī (witness, evidence), used adverbially to mean 'by one's own experience, personally'.
Etymology. sacchi from sakkhī (witness, eyewitness), derived from √sakkh- (to see, perceive); the concrete sense is 'by the eye of one's own experience'. The root may be related to Sanskrit sākṣī (witness), though the etymology is uncertain. The absolutive suffix -katvā (-tvā after a vowel) marks the word as expressing an action completed before the main verb.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
Lite mode — plain HTML for e-readers and old browsers. Full version