出典:Wiktionary
出典:『Wiktionary』 (2026/03/19 16:29 UTC 版)
From the diminutive suffix -lus by rebracketing of nouns such as sigillum and pōcillum (diminutives of signum and pōculum). In words like these, -ill- was the regular phonetic outcome of earlier [n̩l] and [l̩l] (with syllabic [n̩] and [l̩]), which arose from adding the suffix -lus to stems that originally ended in a consonant + /n/ or /l/. After being reinterpreted as a suffix of its own, the ending -illus was attached freely to nouns of any form. Compare -ellus.
-illus
One of various Latin suffixes that could be attached to a noun to derive a diminutive. As a rule, the gender of a diminutive matches the gender of the base noun, and the form of the suffix changes accordingly: -illus m, -illa f, -illum n.
First declension for feminine nouns, second declension for masculine or neuter nouns.
| singular | plural | ||||||
|---|---|---|---|---|---|---|---|
| masculine | feminine | neuter | masculine | feminine | neuter | ||
| nominative | -illus | -illa | -illum | -illī | -illae | -illa | |
| genitive | -illī | -illae | -illī | -illōrum | -illārum | -illōrum | |
| dative | -illō | -illae | -illō | -illīs | |||
| accusative | -illum | -illam | -illum | -illōs | -illās | -illa | |
| ablative | -illō | -illā | -illō | -illīs | |||
| vocative | -ille | -illa | -illum | -illī | -illae | -illa | |