Where does “outramar” come from?

outramar (Old Portuguese) comes from Latin mare, from Proto-Italic mari, from Proto-Indo-European móri, from Proto-Indo-European mer- — to die; to disappear; sea, lake, wetland.

Ancestry of “outramar”, step by step

outramar traces back through two separate lines of ancestry.

via Latin mare

StepLanguageWordMeaning
1Latinmaresea; ablative singular of mās
2Proto-Italicmarisea
3Proto-Indo-Europeanmórisea; standing water
4Proto-Indo-Europeanmer-to die; to disappear; sea, lake, wetland

via Latin ultra

StepLanguageWordMeaning
1Latinultrabeyond; beyond, further; additionally, besides
2Latin-ter-ly
3Proto-Indo-European-terosContrastive or oppositional adjectival suffix
Every word from Proto-Indo-European mer-Every word from Proto-Indo-European móriEvery word from Proto-Italic mari