Remy traces to the Latin Remigius, likely built on remigare, to row, though popular use has long linked the name loosely to remedium, remedy, giving it an added association with healing. Between the two threads runs a sense of steady, effortful care -- work done to move something forward or to mend it.
Mercury can be used for one thing and its contrary because it is of a variable nature. - Picatrix (Andalusia, ~1000.AD)