Origin: ModL sextans (gen. sextantis), arc of a sixth part of a circle < L, a sixth part < sextus, sixth
See sextant in American Heritage Dictionary 4
Origin: New Latin sextāns, sextant-
Origin: , from Latin, sixth part (so called because the instrument's arc is a sixth of a circle)
Origin: , from sextus, sixth; see s(w)eks in Indo-European roots.
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