 Another opinion, suggest that the settlement's name derived from the abundant yellow flowers in the region at the time, who the early settlers (likely from Beira Baixa) called "Campo das Amarelas" ().Finally, there also exist two properties between the village and the Spanish frontier that have the name "Amarales" and "Amarela", and may have derived from these place names.Amareleja was a victim of Spanish pillaging during the Restoration Wars; 300 mounted soldiers entered the village and sacked the homes, left, and returned later to re-sack the populace, which put up no resistance.