PROPITIATORY
propitiative, propitiatory
(adjective) intended to reconcile or appease; “sent flowers as a propitiatory gesture”
expiatory, expiative, propitiatory
(adjective) having power to atone for or offered by way of expiation or propitiation; “expiatory (or propitiatory) sacrifice”
Source: WordNet® 3.1
Etymology
Adjective
propitiatory (comparative more propitiatory, superlative most propitiatory)
Intended to propitiate, reconcile, expiate or appease; conciliatory.
Source: Wiktionary
Pro*pi"ti*a*to*ry, a. Etym: [L. propitiatorius: cf. F.
propitiatoire.]
Definition: Having the power to make propitious; pertaining to, or employed
in, propitiation; expiatory; as, a propitiatory sacrifice. Sharp.
Pro*pi"ti*a*to*ry, n. Etym: [L. propitiatorium.] (Jewish Antiq.)
Definition: The mercy seat; -- so called because a symbol of the
propitiated Jehovah. Bp. Pearson.
Source: Webster’s Unabridged Dictionary 1913 Edition