robur.
oak (tree/timber/trunk/club/post/cell); tough core; resolve/purpose; B:tetanus; strength/firmness/solidity; vigor, robustness; potency, force, effectiveness; |military strength/might/power; heart, main strength, strongest element; ||mainstay/bulwark, source of strength; stronghold, position of strength;
Meaning & usage
a tough-wooded oak tree
hardness
strength
stronghold
Where this word comes from
From earlier rōbus (with change of nominative after the pattern of iecur), from Proto-Italic *rouβos, from Proto-Indo-European *h₁rewdʰ- (“red”), named for its reddish hardwood and thus cognate to ruber.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.