Calembel

We have no information about the foundation of Calembel, except that we can say for sure that it existed at the end of the Third Age. The fact that it was connected by road to Pelargir (which was founded in the Second Age, in II 2350) implies that the town might have been very old indeed. This is far from conclusive, however (it is quite conceivable that the town was established later, and the road built after the event) so Calembel may not have existed until after the foundation of the realm of Gondor in II 3320.

'Greenham' is Tolkien's own interpretation of the name Calembel, from his extended index to The Lord of the Rings. This comes from Elvish calen 'green' and the old word bel meaning a small village or hamlet. (We might perhaps expect the bel in Calembel to have some connection with the same element in nearby Belfalas, but this does not seem to be the case.)