fe·lic·i·ta·tion 
(fĭ-lĭs′ĭ-tāshən)
(fĭ-lĭs′ĭ-tāshən)n.
1. The act of expressing joy or acknowledgment, as for the achievement or good fortune of another.
2. often felicitations An expression of such joy or acknowledgment.
- impend
- impendence
- impendent
- impenetrability
- impenetrable
- impenetrableness
- impenetrably
- impenitence
- impenitent
- impenitently
- imperative
- imperatively
- imperativeness
- imperator
- imperatorial
- imperceptibility
- imperceptible
- imperceptibleness
- imperceptibly
- imperceptive
- imperceptiveness
- imperceptivity
- impercipient
- imperfect
- imperfect fungus