How do you spell Congruity

Available Definitions:
1)  n. - The state or quality of being congruous; the relation or agreement between things; fitness; harmony; correspondence; consistency.
2)  n. - Coincidence, as that of lines or figures laid over one another.
3)  n. - That, in an imperfectly good persons, which renders it suitable for God to bestow on him gifts of grace.