出典:Wiktionary
出典:『Wiktionary』 (2025/07/04 14:10 UTC 版)
From international scientific vocabulary, from a New Latin combining form, from Classical Latin umbilicus; compare also the synonymous prefix at omphalo- § Etymology; as explained at ὀμφαλός § Etymology, all of these words are cognates ultimately from the same Proto-Indo-European root.