haversine

[ hav-er-sahyn ]

noun

, Trigonometry.

1. one half the versed sine of a given angle or arc.

haversine

/ ˈhævəˌsaɪn /

noun

1. obsolete.
   half the value of the versed sine

Word History and Origins

Origin of haversine¹

First recorded in 1870–75; ha(lf) + ver(sed) + sine ( def )

Word History and Origins

Origin of haversine¹

C19: combination of half + versed + sine ¹