411 REFERENCE · Wiktionary
Lyman's law
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Etymology
After Benjamin Smith Lyman (1835–1920), American mining engineer and amateur linguist.
Proper noun
en linguistics A linguistic rule stating that rendaku does not occur if the second element of the compound contains a voiced obstruent in any position, e.g. yama + kaji produces yamakaji (mountain fire), not *yamagaji.
en eponyms