From ipse (“-self, the same”) + -issimus (superlative suffix). Attested in Plautus.[1]
ipsissimus (feminine ipsissima, neuter ipsissimum); first/second-declension adjective
First/second-declension adjective.
singular | plural | ||||||
---|---|---|---|---|---|---|---|
masculine | feminine | neuter | masculine | feminine | neuter | ||
nominative | ipsissimus | ipsissima | ipsissimum | ipsissimī | ipsissimae | ipsissima | |
genitive | ipsissimī | ipsissimae | ipsissimī | ipsissimōrum | ipsissimārum | ipsissimōrum | |
dative | ipsissimō | ipsissimae | ipsissimō | ipsissimīs | |||
accusative | ipsissimum | ipsissimam | ipsissimum | ipsissimōs | ipsissimās | ipsissima | |
ablative | ipsissimō | ipsissimā | ipsissimō | ipsissimīs | |||
vocative | ipsissime | ipsissima | ipsissimum | ipsissimī | ipsissimae | ipsissima |