bitumen
UK[ˈbɪtʃʊmən]US[bɪˈtuːmən]
n
A black sticky substance obtained from petroleum, used for making roads and roofs waterproof.
Etymology
The word 'bitumen' entered English directly from Latin, where 'bitūmen' referred to natural asphalt or mineral pitch. The Latin term's own origins are obscure but it is likely derived from a Celtic language, possibly Gaulish. This linguistic journey reflects the material's ancient use in waterproofing and construction, known to both Roman and pre-Roman cultures in Europe. The modern English meaning remains remarkably close to the ancient one, denoting the viscous hydrocarbon substance used for paving and sealing.
Analysis
The word is a simplex loanword. It is a direct borrowing from Latin 'bitūmen', meaning 'mineral pitch, asphalt'. The Latin term is of uncertain origin, possibly from a Celtic source.
Examples
The road was resurfaced with a layer of hot bitumen.
Bitumen is a key component in the production of asphalt for roofing.
Natural deposits of bitumen have been used since antiquity for waterproofing boats.