words from the 1800s
- abnormality mid 19th century
- analog early 19th century
- cognizant 19th century
- contraption early 19th century
- dodgy mid 19th century
- employee early 19th century
- gel coined mid 19th century by Thomas Graham
- iridescent coined 1800
- isolation 1800
- liberal 1800
- lorry 19th century
- acclimation 1801
- energy coined 1802 by Thomas Young
- polytechnic 1805
- torpedo coined 1805 by Robert Fulton
- accreditation 1806
- potassium coined 1807 by Humphry Davy
- calcium coined 1808 by Humphry Davy
- sodium coined 1808 by Humphry Davy
- doughnut 1809
- chlorine coined 1810 by Humphry Davy
- wangle 1810
- chloride coined 1812 by Humphry Davy
- slum 1812
- fluorine coined 1813 by Humphry Davy
- iodine coined 1814 by Humphry Davy
- opalescent 1814
- boost 1815
- critter 1815
- viaduct coined 1816
- alba 1821
- squawk 1821
- demotic 1822
- snipe 1824
- decussate 1825
- lummox 1825
- teeny 1825
- hello 1826
- specificity 1829
- cushiony 1830
- group coined 1830
- hex 1830
- synthesize 1830
- polymer coined 1833 by Jacob Berzelius
- anode coined 1834 by William Whewell
- cation coined 1834 by William Whewell
- discombobulate 1834
- ion coined 1834 by William Whewell
- scientist coined 1834 by William Whewell
- waiter 1834
- abnormal 1835
- prehistory 1836
- snicker 1836
- ecclesiology coined 1837 by British Critic
- dago 1838
- cloak-and-dagger 1840
- cyclone coined 1840 by Henry Piddington
- harmonium coined 1840 by Alexandre Debain
- insectivore coined 1840 by William Whewell
- kindergarten coined 1840 by Friedrich Fr
- dinosaur coined 1841 by Richard Owen
- dissimilate 1841
- halogen coined 1842
- micturate 1842
- optimize 1844
- blat 1846
- folklore coined 1846 by William Thoms
- paronym coined 1846
- reification 1846
- scalar coined 1846 by William Rowan Hamilton
- simplex coined 1846 by Pieter Hendrik Schoute
- vector coined 1846 by William Rowan Hamilton
- linguistics coined 1847 by William Whewell
- moniker 1849
- quadrifurcate 1849
- feminism 1851
- calibration 1852
- feminist 1852
- fluorescence coined 1852 by George Stokes
- opt 1853
- capitalism 1854
- aeroplane 1855
- diphtheria coined 1855
- meristem 1858
- aerobic coined 1863 by Louis Pasteur
- hallmark 1864
- entropy coined 1865 by Rudolph Clausius
- knife 1865
- supernormal coined 1865
- vaccicide 1865
- zonal 1865
- hellhole 1866
- hoodlum 1866
- bicycle 1868
- homosexual coined 1868 by Karl Maria Kertbeny
- homosexuality coined 1869 by Karl Maria Kertbeny
- deforestation 1870
- abiotic 1874
- cerebrate 1874
- marijuana 1874
- charisma 1875
- highbrow 1875
- lyric 1876
- primate 1876
- telephone 1876
- enzyme coined 1878 by Ancient Greek
- acculturation 1880
- barchan 1881
- bike 1882
- dude 1883
- humdinger 1883
- dyad coined 1884 by Josiah Willard Gibbs
- dyadic coined 1884 by Josiah Willard Gibbs
- gangster 1884
- phone 1884
- tabloid coined 1884 by United Kingdom
- gadget 1886
- admittance coined 1887
- screwy 1887
- back-formation coined 1888
- dulcitone coined 1888 by Thomas Machell
- electrocution coined 1888
- malocclusion 1888
- televisor coined 1888 by John Logie Baird
- cinema coined 1890
- alcoholic 1891
- deflate coined 1891
- electron coined 1891 by George Stoney
- marathon coined 1894 by Michel Br
- wog 1895
- backpack 1896
- antimatter coined 1898 by Arthur Schuster
- radioactive coined 1898 by Pierre Curie
- conjugated coined 1899 by Johannes Thiele
- neutron coined 1899 by William Sutherland
Dates come from each word's history on Wiktionary, via Kaikki.org (CC BY-SA).