overshade
/ˌəʊvəˈʃeɪd/verb
[with object] To cast a shadow over; to render gloomy or dark; to overshadow. Also (occasionally) without object.
Origin
Old English; earliest use found in King Alfred (c848–899), king of the West Saxons and of the Anglo-Saxons. From over- + shade (although this is first attested later).