overburthen

== English == === Noun === overburthen (countable and uncountable, plural overburthens) Archaic form of overburden. 1832, John W. Colenso, "A Description of Happy-Union Tin Stream-work at Pentuan" in Transactions of the Royal Geological Society of Cornwall, T. Vigurs, Vol. 4, p. 38 [2] The overburthen contains no sea-sand, but is composed of silt and river gravel […] . === Verb === overburthen (third-person singular simple present overburthens, present participle overburthening, simple past and past participle overburthened) Archaic form of overburden.