Unnumbered source etymology
Original entry ↗Abbreviation of arccosine.
Etymology tree Proto-Indo-European *h₂erkʷ- Proto-Indo-European *h₂erkʷos Proto-Italic *arkuos Latin arcusder. English arc- English cosmetologyclip. English cos English arccos From arc- + cos.
Inspect preserved source fields
Raw extraction fields are retained for auditing. Their order does not establish ancestry.
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