the.com/ratification

Where a signature becomes a promise the whole country has to keep.

means The formal act of officially approving or confirming something — like a treaty, law, or amendment — so it becomes binding.

from Traces back to Latin 'ratus' (fixed, settled, approved — the past participle of 'reri,' to reckon or think) combined with 'facere' (to make). So to ratify is literally 'to make settled' — to take something provisional and reckon it final. The word moved through medieval Latin 'ratificare' into French and then English, originally doing legal and ecclesiastical work: popes ratified decisions, kings ratified charters, long before parliaments ratified constitutions.

treaty threshold
US Senate needs two-thirds, not a majority
constitution math
took only 9 of 13 states to ratify
etymology
from Latin ratus, meaning calculated or fixed
equal rights amendment
passed Congress 1972, still unratified by enough states
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