Sceadu

Part of speech: noun

Definitions

1. The dark shape or area cast on a surface when an object blocks the light falling on it
2. An area of darkness made by an object standing between a light source and the ground or a wall
3. Dimness or gloom in a place where direct light cannot reach, especially the outline left behind by something opaque

Etymology: Old English "sceadu" meant "shadow," and it is the direct ancestor of modern English "shade" and "shadow." Its Old English plural and oblique forms often showed the vowel shift that later produced "shadow," while "shade" descends from a related form that kept a shorter vowel and entered Middle English as "shade" with the same basic meaning of an area screened from light. Both words therefore come from one Germanic root whose sense was simply a darkened outline cast by an object blocking the light. The word has a Germanic lineage, with cognates in Old Saxon "skado," Old High German "scato," and Old Norse "skuggi," which shows it was already well established across the early Germanic languages. Many of these cognates kept the sense of shelter or shade, and the English word expanded in both directions, toward the dark image on the ground and toward protection from heat and glare.