Portuguese certo

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

← Latin certus (inherited)

← Latin cernō (mention)

← Old Portuguese certo (inherited)

→ Kabuverdianu sertu (derived)

→ Guinea-Bissau Creole sertu (derived)

→ Portuguese acertar (affix)

→ Portuguese certificar (affix)

→ Portuguese certeza (suffix)

→ Portuguese decerto (compound)

→ Portuguese certeiro (affix)