neuter singular nominative/accusative of mānetabba (gerundive), or potentially masculine singular nominative as a predicative adjective; surface form mānetabbaṁ shows sandhi (anusvāra for nasal assimilation before labial)
Analysis. mān- (root of māṇeti, to honor) + -etabba (gerundive suffix indicating obligation or fitness). The gerundive expresses what is fit or proper to be done.
Etymology. From √mān (to honor, think much of), possibly related to Sanskrit mānate (esteems). The -etabba suffix derives from -e- (causative or gerundive formant) + -tabba (obligation marker, functionally like Latin -bilis). The compound sense conveys 'fit to be honored'.
Meanings from the Digital Pāḷi Dictionary; morphology and etymology by Claude.
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