From rōbus (“a kind of hard oak; hardness, strength”) + -tus.
rōbustus (feminine rōbusta, neuter rōbustum, comparative rōbustior, superlative rōbustissimus); first/second-declension adjective
First/second-declension adjective.
singular | plural | ||||||
---|---|---|---|---|---|---|---|
masculine | feminine | neuter | masculine | feminine | neuter | ||
nominative | rōbustus | rōbusta | rōbustum | rōbustī | rōbustae | rōbusta | |
genitive | rōbustī | rōbustae | rōbustī | rōbustōrum | rōbustārum | rōbustōrum | |
dative | rōbustō | rōbustae | rōbustō | rōbustīs | |||
accusative | rōbustum | rōbustam | rōbustum | rōbustōs | rōbustās | rōbusta | |
ablative | rōbustō | rōbustā | rōbustō | rōbustīs | |||
vocative | rōbuste | rōbusta | rōbustum | rōbustī | rōbustae | rōbusta |