'ratifioida' originates from Latin, specifically the word 'ratificare' (through French 'ratifier' and Swedish 'ratificera'), where 'ratus' meant 'fixed, confirmed' and the element '-ficare' (from 'facere') meant 'to make'.

'ratificare' passed into Old French as 'ratifier', later into Swedish as 'ratificera', and was adopted into Finnish as the verb 'ratifioida' (an international/loan formation) meaning to make something ratified.

Initially it meant 'to make firm or confirm', and over time it evolved into the current usage 'to formally approve or confirm, especially treaties or official acts'.