Qenya
lemya-
verb. to remain, tarry, to remain, tarry; *to be left over
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!
A verb in The Etymologies of the 1930s glossed “to remain, tarry” derived from the root ᴹ√LEM of similar meaning (EtyAC/LEB).
Neo-Quenya: Given ᴹQ. lemba “left behind”, I think lemya- might also be used for “remain = be left over/behind”.