excavate vs grub out

excavate and grub out both are verbs.

Word	Noun	Adjective	Verb	Adverb
excavate	No	No	Yes	No
grub out	No	No	Yes	No

As verbs, grub out is a hyponym of excavate; that is, grub out is a word with a more specific, narrower meaning than excavate:

Other hyponyms of excavate include grub up, nuzzle, disinter, exhume.

excavate (verb)	grub out (verb)
find by digging in the ground	dig up
remove the inner part or the core of
form by hollowing
recover through digging