"What does SILPH mean?"

#PokemonGO: I get that it is a pun to silkroad, but SILPH?EDIT: thanks to /u/a_Mew who posted the link from bulbapediaand thanks to /u/JayO28who not only explained that "Sylph means "Imaginary Spirit of the air"." but also explained that a road was "a wide way leading from one place to another, especially one with a specially prepared surface that vehicles can use." thank you via /r/TheSilphRoad http://ift.tt/2jwiANT