Glendower \g-lendo-wer, gl(en)-dower\ as a boy's name is of Welsh origin, and the meaning of Glendower is "valley of water".
Glendower has 5 variant forms: Glin, Glyn, Glynn, Glyndwer and Glyndwr.
Baby names that sound like Glendower are Glendon, Glendale and Glenden.