TANTAMOUNT

equivalent, tantamount

(adjective) being essentially equal to something; “it was as good as gold”; “a wish that was equivalent to a command”; “his statement was tantamount to an admission of guilt”

Source: WordNet® 3.1

Etymology

Adjective

tantamount (comparative more tantamount, superlative most tantamount)

Equivalent in meaning or effect; amounting to the same thing in practical terms, even if being technically distinct.

Usage notes

• Used almost exclusively in the phrase tantamount to.

Verb

tantamount (third-person singular simple present tantamounts, present participle tantamounting, simple past and past participle tantamounted)

(obsolete) To amount to as much; to be equivalent.

Noun

tantamount (plural tantamounts)

(obsolete) Something which has the same value or amount (as something else). (attributive use passing into adjective, below)

Source: Wiktionary

Tan"ta*mount`, a. Etym: [F. tant so much (L. tantus) + E. amount.]

Definition: Equivalent in value, signification, or effect. A usage nearly tantamount to constitutional right. Hallam. The certainty that delay, under these circumstances, was tantamount to ruin. De Quincey.

Tan"ta*mount`, v. i.

Definition: To be tantamount or equivalent; to amount. [Obs.] Jer. Taylor.

Source: Webster’s Unabridged Dictionary 1913 Edition