neuter nominative singular (accusative form -ṁ), gerundive adjective (potential passive); resolves tatpuruṣa compound
Analysis. sacchi- (real, concrete; adverbial form of sacca "truth") + kātabba (gerundive of √kar "make"), literally "to be made real/concrete"; used doctrinally of truths that must be directly verified through practice rather than mere intellectual assent.
Etymology. Sacca derives from Indo-European *sak- (follow, pursue), akin to Latin sequor and English sake; the prefix sacchi- (from sacca "real, true") expresses what is concrete and present rather than merely heard or inferred. The gerundive suffix -abba (from √kar + -tabba) marks duty or necessity — what ought to be done.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
Lite mode — plain HTML for e-readers and old browsers. Full version