Portuguese instalar

← French installer (borrowed)

← Proto-Germanic *stallaz (derived)

← Proto-Indo-European *stelǝ- (derived)

← Proto-Indo-European *stAlǝn- (mention)

← Proto-Indo-European *stAlǝm- (mention)

← Latin in- (derived)

← Latin stallum (mention)

→ Portuguese reinstalar (affix)

→ Portuguese desinstalar (affix)