hallas (plural hellais, archaic plural helleis)

tallness, height

With singular and plural “the”, showing Soft and Nasal mutations:
i challas “the height”
i chellais “the heights”

hall “tall” (Ety363) and -as abstract nominalizer, isolated from words such as bellas “strength” (Ety352) and maenas “craft” (Ety371)

bellas “strength” (Ety352)

Fiona Jallings, a.k.a. 'dreamingfifi' Merin Essi ar Quenteli! - Wordlists - Reconstructed Sindarin