出典:Wiktionary
出典:『Wiktionary』 (2026/04/28 15:43 UTC 版)
Inherited from Proto-Italic *-isəmos, from Proto-Indo-European *-is-(t)m̥mós, from *-yōs (comparative suffix, zero-grade *-is) + *-(t)m̥mos (absolute superlative suffix).
The latter is seen whole in -timus (e.g. intimus, extimus, citimus, ultimus, assimilated pessimus, optimus). The original form seems, however, to be *-m̥mós (see super, summus), which acquired an initial /t/ from the paradigm -ter ~ -timus (e.g. exter ~ extimus), and is cognate with Proto-Germanic *-umô (source, via metanalysis, of English -most). By various sound changes (e.g. *-isəmos > *-ismos > *-īmus) superlative grades in -īmus, -ēmus etc. (e.g. extrēmus, suprēmus) are also found.
The expected development of *-(o)ism̥mos > *-erimus is nowhere to be found. The geminate /s/ may be the result of expressive lengthening or influence from specific forms similar to pessimus and endings in -errimus and -illimus.
First/second-declension adjective.
| singular | plural | ||||||
|---|---|---|---|---|---|---|---|
| masculine | feminine | neuter | masculine | feminine | neuter | ||
| nominative | -issimus | -issima | -issimum | -issimī | -issimae | -issima | |
| genitive | -issimī | -issimae | -issimī | -issimōrum | -issimārum | -issimōrum | |
| dative | -issimō | -issimae | -issimō | -issimīs | |||
| accusative | -issimum | -issimam | -issimum | -issimōs | -issimās | -issima | |
| ablative | -issimō | -issimā | -issimō | -issimīs | |||
| vocative | -issime | -issima | -issimum | -issimī | -issimae | -issima | |