'frequently-voiced' is a compound word formed from 'frequently' and 'voiced'. 'Frequently' originates from the Latin word 'frequentia', meaning 'a crowd, multitude', and 'voiced' comes from the Latin 'vocem', meaning 'voice'.

'Frequently' evolved from the Latin 'frequentia' through Old French 'frequent', while 'voiced' evolved from the Latin 'vocem' through Old French 'vois'.

Initially, 'frequently' meant 'in great numbers', and 'voiced' meant 'having a voice'. Over time, 'frequently-voiced' evolved to mean 'expressed often'.