出典:Wiktionary
出典:『Wiktionary』 (2026/02/04 00:54 UTC 版)
Contraction of polygonum (“plant of the family Polygonaceae”).
lignum (countable and uncountable, plural lignums)
From Proto-Italic *legnom, from Proto-Indo-European *leǵ-no-m (“that which is collected”), from *leǵ- (“to collect”), with the Italic form interpreted as "wood collected for firemaking".
An alternative derivation from Proto-Indo-European *legʰ- (“to lie”), and associated interpretation as "stray wood", seems equally possible, phonetically and semantically.
lignum n (genitive lignī); second declension
Second-declension noun (neuter).
| singular | plural | |
|---|---|---|
| nominative | lignum | ligna |
| genitive | lignī | lignōrum |
| dative | lignō | lignīs |
| accusative | lignum | ligna |
| ablative | lignō | lignīs |
| vocative | lignum | ligna |
Several forms inherited from the plural ligna, reinterpreted as a feminine singular noun.
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