Piaculum has a meaning of a particularly Eliot character, but I got the best result from expiation:
early 15c., via M.Fr. expiation or directly from L. expiationem (nom. expiatio) "satisfaction, atonement," noun of action from pp. stem of expiare "make amends," from ex- "completely" (see ex-) + piare "propitiate, appease," from pius "faithful, loyal, devout" (see pious).
The sacrifice of expiation is that which tendeth to appease the wrath of God. [Thomas Norton, translation of Calvin's "Institutes of Christian Religion," 1561]
"Rickard A. Parker" <[log in to unmask]> wrote:
>On Fri, 15 Feb 2013 08:24:15 +0000, David Boyd <[log in to unmask]> wrote:
>>Thinking of Eliot's deployment of 'piaculative' - did the adjective
>previously exist in dormant obscurity, or did Eliot just invent it?
>Probably just invented it. A Google search with terms to exclude Eliot
>didn't find much either on the web or in books. I used:
> piaculative -pustular -eliot -translation -definition -poetry