"confoundedly" 1833, later on additionally as an adjective, from past participle of blame (v.), as a "euphemistic evasion of the horrible term damn." [Bartlett, "Dictionary of Americanisms," 1848]. This adjective 'blamed' may be the virtuous oath in which quick people, that enhancing their habits, cure themselves of a more powerful epithet. [Edward Everett Hale, "If, Yes, and Perhaps," 1868] Compare also blamenation (1837) as an expletive. The imprecation blame me personally is attested from 1830.
expletives made use of informally as intensifiers
- of Blame
(imp. & p. p.) of Blame
Phosphuretted hydrogen, one of the most important impurities, which has been blamed for the haze formed by the combustion of acetylene under certain conditions, is produced by the action of water upon traces of calcium phosphide found in carbide.