This study comprises a colour semantic investigation into the greyness of Old English, forming a companion volume to the author's Blue in Old English (1997). The research is conducted by means of word-studies of graeg, har, hsau, and wylfen, and their context. The investigation makes use of etymology, literary studies, sociolinguistics, zoology, botany and ornithology, giving Anglo-Saxon' subtle use of grey to inspire a sense of the richly varied Anglo-Saxon world of frost, iron, ancient trees, stalking wolves, and hoary-headed saints and warriors.