The name means "boundary stream". Mering represents Old English māere, mēre, "boundary". Glanhír comes from Sindarin glan, "mark, boundary" and sîr, "river, stream".
Sindarin
glanhír
place name. Boundary Stream
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
English
Mering Stream
Mering Stream
Sindarin name of the Mering Stream in Rohan, translated “boundary stream” (UT/318). This name is combination of glan(n) “border” and the lenited form of sîr “river”.