This is complete speculation, but I wonder if the less common inverted title (eg Lake Michigan, River Thames, etc) comes from English’s French influence. In French they usually invert the title in this way. For example, what we call the Eiffel Tower, they call the Tour d’Eiffel.
I did some digging and the two words have different etymologies. So it’s a coincidence. English has many words that share the same spelling but have different meanings/etymologies as well. “Fan” for example. For “tour”, the “tower” usage comes from the Latin “turrem” which also means “tower”, and the “tour” usage comes from the Latin “tournāre” which means “to turn”.
This is complete speculation, but I wonder if the less common inverted title (eg Lake Michigan, River Thames, etc) comes from English’s French influence. In French they usually invert the title in this way. For example, what we call the Eiffel Tower, they call the Tour d’Eiffel.
deleted by creator
I did some digging and the two words have different etymologies. So it’s a coincidence. English has many words that share the same spelling but have different meanings/etymologies as well. “Fan” for example. For “tour”, the “tower” usage comes from the Latin “turrem” which also means “tower”, and the “tour” usage comes from the Latin “tournāre” which means “to turn”.