undermine

As verbs the difference between undermine and break

is that undermine is to dig underneath (something), to make a passage or for destructive or military purposes; to sap while break is to separate into two or more pieces, to fracture or crack, by a process that cannot easily be reversed for reassembly.

As a noun break is

an instance of breaking something into two pieces.

As verbs the difference between undermine and brek

is that undermine is to dig underneath (something), to make a passage or for destructive or military purposes; to sap while brek is .

As a noun brek is

(informal) breakfast.

As verbs the difference between undermine and refute

is that undermine is to dig underneath (something), to make a passage or for destructive or military purposes; to sap while refute is .

As verbs the difference between undermine and diminish

is that undermine is to dig underneath (something), to make a passage or for destructive or military purposes; to sap while diminish is to make smaller.

As a verb undermine

is to dig underneath (something), to make a passage or for destructive or military purposes; to sap.

As verbs the difference between undermine and deteriorate

is that undermine is to dig underneath (something), to make a passage or for destructive or military purposes; to sap while deteriorate is to make worse; to make inferior in quality or value; to impair.

As verbs the difference between undermine and ravage

is that undermine is to dig underneath (something), to make a passage or for destructive or military purposes; to sap while ravage is .

As an adjective weak

is lacking in force (usually strength) or ability.

As a verb undermine is

to dig underneath (something), to make a passage or for destructive or military purposes; to sap.

As verbs the difference between undermine and revoke

is that undermine is to dig underneath (something), to make a passage or for destructive or military purposes; to sap while revoke is to cancel or invalidate by withdrawing or reversing.

As a noun revoke is

the act of revoking in a game of cards.

As verbs the difference between undermine and thwart

is that undermine is to dig underneath (something), to make a passage or for destructive or military purposes; to sap while thwart is to prevent; to halt; to cause to fail; to foil; to frustrate.

As a noun thwart is

a brace, perpendicular to the keel, that helps maintain the beam (breadth) of a marine vessel against external water pressure and that may serve to support the rail.

As an adjective thwart is

situated or placed across something else; transverse; oblique.

As an adverb thwart is

obliquely; transversely; athwart.