upwell

As verbs the difference between upwell and underplate

is that upwell is (of a fluid) to rise from a lower source; to well up while underplate is (geology) to act as an underplate.

As a noun underplate is

an armoured plate that forms part of a mortice lock.

As a verb upwell is

(of a fluid) to rise from a lower source; to well up.

As verbs the difference between upswell and upwell

is that upswell is to swell upward while upwell is (of a fluid) to rise from a lower source; to well up.

As a noun upswell

is a rising swell.

As verbs the difference between upsell and upwell

is that upsell is to persuade a customer to buy more than he or she had intended while upwell is to rise from a lower source; to well up.

As a verb upwell

is (of a fluid) to rise from a lower source; to well up.

As an adjective unwell is

not well; indisposed; not in good health; somewhat ill; ailing.

As verbs the difference between rise and upwell

is that rise is (label) to move, or appear to move, physically upwards relative to the ground while upwell is (of a fluid) to rise from a lower source; to well up.

As a noun rise

is the process of or an action or instance of moving upwards or becoming greater.