amount (n.) Look up amount at Dictionary.com
1710, from amount (v.).
amount (v.) Look up amount at Dictionary.com
late 13c., "to go up, rise, mount (a horse)," from Old French amonter, from a mont "upward," literally "to the mountain," from Latin ad- "to" (see ad-) + montem (nominative mons) "mountain" (see mount (n.)). Meaning "to rise in number or quality (so as to reach)" is from c.1300. Related: Amounted; amounting.