lanka is a Quenya word meaning "sharp edge (not of tools), sudden end, as in e.g. a cliff-edge, or the clean edge of things made by hand or built".
- Root (G)LAN ("rim, border, boundary, limit")
- ↑ 1.0 1.1 J.R.R. Tolkien, "The Rivers and Beacon-hills of Gondor" (edited by Carl F. Hostetter), in Vinyar Tengwar, Number 42, July 2001, p. 8