OVERBURDEN
overload, overburden
(noun) an excessive burden
overburden
(noun) the surface soil that must be moved away to get at coal seams and mineral deposits
overburden
(verb) burden with too much work or responsibility
overburden
(verb) load with excessive weight
Source: WordNet® 3.1
Etymology
Verb
overburden (third-person singular simple present overburdens, present participle overburdening, simple past and past participle overburdened)
To overload or overtax
Noun
overburden (plural overburdens)
(geology) The rock and subsoil that lies above a mineral deposit such as a coal seam.
(archaeology) A sterile stratum that lies above the stratum being investigated
Anagrams
• overburned
Source: Wiktionary
O`ver*bur"den, v. t.
Definition: To load with too great weight or too much care, etc. Sir P.
Sidney.
O"ver*bur`den, n.
Definition: The waste which overlies good stone in a quarry. Raymond.
Source: Webster’s Unabridged Dictionary 1913 Edition