principal   
indrindra
especially, exceedingly, chiefly, principally. It is used to form the superlative degree of adjectives, and to qualify or emphasize most adjectives and verbs. [Richardson 1885]
renivola
capital set out at interest; the principal lent out [Hallanger 1973]

principal   
zavatra
le beau, le parfait, le principal [Abinal 1888]