The volt, our unit of electric potential, has honored Alessandro Volta since 1880;
the farad, our unit of electric capacitance, has honored Michael Faraday since 1881.
I could go on. One difficulty in the history of science is that even scientists only slowly
commonly adopt terms for newly discovered effects and laws (such as volt and farad).
Another difficulty is that non-scientists even more slowly adopt the new terms (such as boson
and fermion—which also honor scientists).
See also in The book of science:
Readings on wikipedia: