glittering

The core of 'glittering' lies in the verb 'glitter', a word whose sound echoes its meaning, suggesting a repeated, quick, sparkling motion. It entered English from Old Norse glitra, which is part of a family of Germanic words beginning with gl- that are often associated with light and vision, such as 'gleam', 'glow', and 'glance'. This gl- cluster may trace back to a Proto-Indo-European root meaning 'to shine, glitter, glow'. Over time, the participle 'glittering' evolved from simply describing a physical property of light to also conveying a metaphorical sense of attractive but often insubstantial brilliance, as in 'glittering career' or 'glittering prizes'.

The word 'glitter' is a simplex form. It originates from Middle English gliteren, likely of Scandinavian origin (compare Old Norse glitra "to glitter"). The '-ing' is a productive English suffix forming the present participle and adjective from the verb 'glitter'.