grag (comparative grager, superlative gragst)
From Middle Low German graw, from Old Saxon grao, from Proto-Germanic *grēwaz (compare German Low German grau, Dutch grauw, German grau, Old Norse grár), from Pre-Germanic *ĝrēu̯o, from Proto-Indo-European *ĝher- 'to shine, glow' (compare Latin rāvus 'grey', Old Church Slavonic zirjǫ 'to see, glance', Russian zreti 'to see', Lithuanian žeriù 'to shine'). See also grauw.