Now that you understand how the English Language evolved, share with us some words into which you have gained new insights

The word that I have chose is facade or façade. The word Facade has a French origin, which means it was one of the many words that were transmitted to English via the Anglo-Norman language spoken by the upper classes in England in the centuries following the Norman Conquest. The word generally means that
1.(architecture) The face of a building, especially the front view or elevation.  
2.(by extension) The face or front (most visible side) of any other thing, such as an organ.
3.(figuratively) A deceptive outward appearance; a front.
The word was originally from 1812, Antonio de Alcedo and George Alexander Thompson [tr.], The geographical and historical dictionary of America and the West Indies: containing an entire translation of the Spanish work of Colonel Don Antonio de Alcedo … with large additions and compilations from modern voyages and travels, and from original and authentic information, volume 2, page 13, “Demerara” (J. Carpenter)
The plantations are regularly laid out in lots along the sea-shore, called façades, about a quarter of a mile wide, and extending ¼ths of a mile back into the country.