janela cega (Portuguese) comes from Portuguese janela, from Old Portuguese janella, from Vulgar Latin ianuella, from Latin iānua, from Latin Iānus, from Proto-Indo-European yeh₂- — to go; to go in, enter; to ride, to travel.
janela cega (Portuguese): blind window
Definitions
blind window
Ancestry of “janela cega”, step by step
janela cega traces back through two separate lines of ancestry.