masc instr sg of sacca (adj); nt instr sg of sacca (adj); nt instr sg of sacca (noun)
Etymology. sacca (root √sac 'remember, be mindful') is cognate with Sanskrit satya (truth, from √sat 'be', 'exist'). The shift from 'mindfulness' to 'truth' reflects the Indo-European root √es- 'to be': what is remembered is what persists as real. The instrumental saccena functions adverbially: 'by means of truth', hence 'truly, correctly'. The sense-shift from memory to truth parallels Latin memor and memoria; what is memorable is reliable and real.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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