Equivalent in effect or value: a request tantamount to a demand.
, an equivalent, from
Anglo-Norman tant amunter
, to amount to as much : tant
, so much, so great (from
, neuter of tantus
, from tam
, so; see to- in the Appendix of Indo-European roots
) + amunter
, to amount to, variant of
Old French amonter
; see AMOUNT
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