Etymology of the English word excavator
the English word excavator
derived from the English word excavate
derived from the Latin word excavatio
derived from the Latin word excavare (hollow, scoop out, make hollow)
using the Latin prefix ex-
derived from the Classical Latin word cavare (hollow out, make concave, hollow)
derived from the Latin word cava (hollow; cage)
derived from the Latin word cavus (hollow or cave; hole, cavity, depression; hollow, excavated, hollowed out; sunken; deep, having deep channel)
derived from the Proto-Indo-European root *keuə-
derived from the Latin word cavum (a hollow or cave; hole, cavity, depression)
using the English suffix -or