bituminous (adj.)youdaoicibaDictYouDict[bituminous 词源字典]
1610s, from French bitumineux, from Latin bituminosus, from bitumen (see bitumen).
The Plain, wherein a black bituminous gurge Boiles out from under ground, the mouth of Hell. ["Paradise Lost," XII.41]
[bituminous etymology, bituminous origin, 英语词源]