Synonyms for Excavate:

n.

burrow, dredge, tunnel, grub up, bulldoze, bore. spade, enter, shovel, grub, scoop. make. dig (noun)
shovel.
excavate (noun)
unearth, dig, turn up, dig up, hollow.

v.

dig up (verb)
scoop, grub, unearth, hollow, tunnel, spade, burrow, shovel.
extract (verb)
draw, withdraw, remove, extricate, amputate, eradicate, extract.
perception (verb)
unearth.

Other synonyms:

grub up. spade, scoop, grub. tunnel, dredge, bulldoze. shovel, burrow. unearth
unearth.
uproot
dig up.
Other relevant words:
dig up, scoop, bore, spade, hollow, make, dredge, burrow, bulldoze, grub, enter, shovel, tunnel, grub up, unearth, dig, turn up.