surprise   
fahatairana
alarm; surprise; excitement [Hallanger 1973]
alerte, alarme, surprise, crainte subite [Hallanger 1974]
manampoka
to come upon suddenly, to surprise; to add cold water [Hallanger 1973]

surprise   
fahatairana
alerte, alarme, surprise, crainte subite [Hallanger 1974]
fanetribe
surprise désagréable [Hallanger 1974]
fitairana
la surprise, la frayeur subite, la cause [Abinal 1888]