- cloud (v.)
- early 15c., "overspread with clouds, cover, darken," from cloud (n.). From 1510s as "to render dim or obscure;" 1590s as "to overspread with gloom." Intransitive sense of "become cloudy" is from 1560s. Related: Clouded; clouding.
- overgrown (adj.)
- late 14c., "covered with growth," past participle adjective from overgrow "overspread with foliage" (Old English ofergrowan); see over- + grown, and compare Old English verb ofergrowan "to overgrow." Meaning "having grown too large" is attested from late 15c.