foregone C2+

/ˈfɔrˌɡɔn/ already settled or decided in advance; previous

forgo C2+

/fɔrˈɡoʊ/ to abstain from or give up something

forego C2+

/fɔrˈɡoʊ/ to go before or precede; to abstain from (variant of forgo)

bygone C2+

/ˈbaɪˌɡɔn/ belonging to an earlier time that has passed

forthgo C2+

/fɔrθˈɡoʊ/ to go forth; to proceed or depart

thoroughgoing C2+

/ˈθɝoʊˌɡoʊɪŋ/ complete and thorough; absolute in degree