Onerous
Pronunciation : On"er*ous
Part of Speech : a.
Etymology : [L. onerosus, fr. onus, oneris, a load, burden: cf.F. on?reux.]
Definition : Defn: Burdensome; oppressive. "Too onerous a solicitude." I. Taylor. Onerous cause (Scots Law), a good and legal consideration; -- opposed to gratuitous.
Source : Webster's Unabridged Dictionary, 1913