出典:Wiktionary
crum (countable かつ uncountable, 複数形 crums)
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for crum under crumb in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913)
From Proto-Italic *-klom by long distance dissimilation of /l..l/ > /l...r/. Ultimately from Proto-Indo-European *-tlom. Although the Proto-Indo-European suffix had a variant with *r (*-trom, the ancestor of Latin -trum), the /k/ in -crum indicates that it comes from *tlom, since Proto-Indo-European *t was regularly changed to *k in Italic before *l, but not before *r. Based on the form of Umbrian ehvelklu 'decretum', the dissimilation to /r/ that created the form -crum postdates Proto-Italic.[1] Compare -āris, a dissimilated allomorph of -ālis.
-crum n (genitive -crī); second declension
Second-declension noun (neuter).
| Case | Singular | Plural |
|---|---|---|
| Nominative | -crum | -cra |
| Genitive | -crī | -crōrum |
| Dative | -crō | -crīs |
| Accusative | -crum | -cra |
| Ablative | -crō | -crīs |
| Vocative | -crum | -cra |
| ・crum | |
| ・delimits | |
| ・FUCKING | |
| ・tail risk | |
| ・mia i | |
| ・binoculars | |
| ・daily help | |
| ・crucially | |
| ・scaup | |
| ・splash guard |