sexto
/ˈseɡsto/ · B2 · adj
sixth
6️⃣ Latin sextus = sixth, the same root as sextet and semester
Sexto comes from Latin sextus, from sex (six). English has the same root in sextet (a group of six) and sextant (a sixth of a circle). The x sounds like ks or gs, as in seis → sexto.