nubiferousyoudaoicibaDictYouDict[nubiferous 词源字典]
"That brings clouds; cloudy or full of cloud; existing in clouds", Mid 17th cent.; earliest use found in Thomas Blount (1618–1679), antiquary and lexicographer. From classical Latin nūbifer that brings clouds (from nūbēs cloud + -fer) + -ous; compare -ferous.[nubiferous etymology, nubiferous origin, 英语词源]