Etymology

arcsine

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Today it means: Any of several single-valued or multivalued functions that are inverses of the sine function. Symbol: arcsin, sin⁻¹ Full definition →

English sine ← Latin sinus ← Arabic جِيبَ (jība)
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The story

  1. Proto-Indo-European*h₂erkʷ-
  2. Proto-Indo-European*h₂erkʷos
  3. Proto-Italic*arkuos
  4. Latinarcus
  5. Englisharc-
  6. Proto-Indo-European*sinos
  7. Proto-Italic*sinus
  8. Arabicجِيبَ (jība)
  9. Latinsinus
  10. Englishsine
  11. English todayarcsine

From arc- + sine.

Etymology from Wiktionary, CC BY-SA 4.0.