attest

As an adjective fattest

is superlative of fat.

As a verb attest is

to affirm to be correct, true, or genuine.

As a verb attest

is to affirm to be correct, true, or genuine.

As an adjective attent is

attentive, heedful; intent.

As verbs the difference between adduce and attest

is that adduce is to bring forward or offer, as an argument, passage, or consideration which bears on a statement or case; to cite; to allege while attest is to affirm to be correct, true, or genuine.

As an adjective aptest

is (apt).

As a verb attest is

to affirm to be correct, true, or genuine.

As verbs the difference between attest and actest

is that attest is to affirm to be correct, true, or genuine while actest is (act).

As verbs the difference between attest and sattest

is that attest is to affirm to be correct, true, or genuine while sattest is (archaic).

As verbs the difference between pattest and attest

is that pattest is archaic second-person singular of pat while attest is to affirm to be correct, true, or genuine.

As verbs the difference between attest and assert

is that attest is to affirm to be correct, true, or genuine while assert is to declare with assurance or plainly and strongly; to state positively.

As a noun assert is

an assert statement; a section of source code which tests whether an expected condition is true.

As verbs the difference between endorse and attest

is that endorse is to support, to back, to give one's approval to, especially officially or by signature while attest is to affirm to be correct, true, or genuine.

As a noun endorse

is (heraldiccharge) a diminutive of the pale, usually appearing in pairs on either side of a pale.

As a noun taxonomy

is the science or the technique used to make a classification.

As a verb attest is

to affirm to be correct, true, or genuine.