umbo.
boss (of a shield);
Meaning & usage
boss (of a shield, etc.)
elbow (or similar projecting part)
Where this word comes from
From Proto-Indo-European *h₃émbʰō ~ *h₃m̥bʰ-n-és, from the root *h₃m̥bʰ- (“navel; nave, hub”). Particularly close cognate with Proto-Germanic *ambô (“belly; paunch”).
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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.