hidhum

noun. fog

A Doriathrin noun for “fog” written hiðum in The Etymologies, and derived from the primitive form ᴹ✶khithme [kʰitʰme] (Ety/KHIS, EtyAC/KHIS). This word illustrates several interesting phonetic changes in Ilkorin.

• Both the aspirates became voiceless spirants: [kʰ-] > [x-] and [-tʰ-] > [-θ-].

• Later the [[ilk|initial [x-] became [h-]]].

• Meanwhile the [[ilk|medial [-θ-] voiced to [-ð-]]] (“dh”).

• The [[ilk|primitive final [e] was lost]].

• Afterwards, the resulting [[ilk|final [m] became syllabic and developed into [-um]]].