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出典:Wiktionary
出典:『Wiktionary』 (2026/01/12 01:50 UTC 版)
From round (adjective) + robin. Sense 1 (“senses relating to something with a round shape, or which goes around”) is connected with the word round, while sense 2 (“senses relating to people, animals, or plants”) is connected with some English regional senses of the word robin where it is used in the names of various fish and plants which are not related to the red-breasted bird. However, apart from the alliteration, it is not clear why the two words came to be linked together in compounds. It is possible that the term was first used to refer to sense 1.13.1 (“consecrated host”) which appears to be the earliest attested sense, and then extended to other senses either having the sense of round or robin.
Alternatively, it has been suggested that the term is a corruption of French ruban rond (literally “round ribbon”), referring to the practice in 17th-century France of signing on ribbons which were then attached to petitions of grievances in a circular manner: see sense 1.1. However, this etymology does not explain the senses of the term unrelated to a signed document.
round robin (plural round robins)
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a roller
the circumference of a circle
内接円.
同心円.
a column
円周.
the circumference of a circle
a cerement
a curve
the horizontal axis
丸えり
同心円.
曲線トレーサリー
鈍角.