The U.S. Attorney, Leura Canary, argued this was tantamount to sale of a public office and brought charges.
These days, women often view a decent job and an employed husband as if such good luck were tantamount to winning the lottery.
Forcing a baby to sleep outside the ‘Family Bed’ is tantamount to neglect.
1640s, from verbal phrase tant amount "be equivalent" (1620s), from Anglo-French tant amunter "amount to as much" (late 13c.), from Old French tant "as much" (from Latin tantus, from tam "so") + amonter "amount to, go up" (see amount).