forewarn

forewarn /foɚˈwoɚn/ verb
forewarns; forewarned; forewarning
forewarn
/foɚˈwoɚn/
verb
forewarns; forewarned; forewarning
Britannica Dictionary definition of FOREWARN
[+ object]
: to warn (someone) before something happens — usually used as (be) forewarned
◊ The expression forewarned is forearmed means that when you are warned about something, you are prepared to deal with it.