pro·pi·tious 
(prə-pĭshəs)
(prə-pĭshəs)adj.
1. Presenting favorable circumstances or showing signs of a favorable outcome; auspicious: "Grandmothers consulted almanacs to determine a propitious hour for the betrothal" (Jhumpa Lahiri).
2. Merciful or kindly: a propitious deity.
[Middle English propicius, from Old French propicieux, from Latin propitius; see pet- in the Appendix of Indo-European roots.]
pro·pitious·ly adv.
pro·pitious·ness n.