From Tolkien Gateway
- Editor Carl F. Hostetter notes that lotheg is formed by the addition of a diminuitive/singular ending -eg/-ig to the plural form loth, much like in Welsh where a singular noun can derive "from a plural form by the addition of a singular ending". Cf. J.R.R. Tolkien, "The Rivers and Beacon-hills of Gondor" (edited by Carl F. Hostetter), in Vinyar Tengwar, Number 42, July 2001, p. 30 (note 42).