in ”Noldorin”, but apparently ✱yr- in Sindarin. Compare
Sindarin
nor-
verb. to run
nor-
verb. to ride
cell
running
ior
i
nor
run
(verb) 1) nor- (i nôr, in nerir). Only attested as imperative noro! 2) *yr-. Only the ”Old Noldorin” form yurine* ”I run” is given in the source; the verbal stem would become ior**- in ”Noldorin”, but apparently *yr- in Sindarin. Compare COURSE, q.v., where the words come from the same root __-.
nor
run
(i nôr, in nerir). Only attested as imperative noro! 2) ✱yr-. Only the ”Old Noldorin” form yurine ”
(of water: flowing), lenited gell; pl. cill