Etymology
Advertisement
geology (n.)

1795 as "science of the past and present condition of the Earth's crust," from Modern Latin geologia "the study of the earth," from geo- "earth" + logia (see -logy). German Geologie is attested by 1785. In Medieval Latin, geologia (14c.) meant "study of earthly things," i.e. law, as distinguished from arts and sciences, which concern the works of God. Darwin used geologize as a verb.

There rolls the deep where grew the tree.
      O earth, what changes hast thou seen!
      There where the long street roars, hath been
The stillness of the central sea.
The hills are shadows, and they flow
      From form to form, and nothing stands;
      They melt like mist, the solid lands,
Like clouds they shape themselves and go. 
[from "In Memoriam," 1850]
Related entries & more 
Advertisement
geological (adj.)
1791, from geology + -ical. Related: Geologically.
Related entries & more 
hydrogeology (n.)
also hydro-geology, 1802, from hydro- + geology; modeled on French hydrogéologie.
Related entries & more 
geologist (n.)
1795, from geology + -ist. Alternatives are geologer (1822); geologian (1837).
Related entries & more 
geologic (adj.)
1799, from geology + -ic. Geologic time is attested from 1846.
Related entries & more 
Advertisement
uniformitarian (n.)
1840 in geology, from uniformity + -arian. Related: Uniformitarianism (1865).
Related entries & more 
disintegration (n.)

"destruction of the cohesion of constituent parts," originally in geology, 1796, noun of action from disintegrate.

Related entries & more 
hydrothermal (adj.)
"of or pertaining to heated water," 1855, in geology, from hydro- "water" + thermal (adj.).
Related entries & more 
erosive (adj.)
1725, of tumors, etc.; 1827 in geology, from eros-, past participle stem of Latin erodere "gnaw away" (see erode) + -ive.
Related entries & more 
acidic (adj.)
1877, originally in geology; see acid (n.) + -ic.
Related entries & more