[hee-awr-tol-uh-jee] 
| the study of the history and significance of the feasts and seasons in the ecclesiastical calendar. |
| Main Entry: | heortology |
| Part of Speech: | n |
| Definition: | the study of religious feasts, festivals, and seasons, esp. their growth, history, and meaning |
| Etymology: | Greek heorte 'festival, feast' |
ɔrˈtɒl