psephology Syllabification: (pse·phol·o·gy)Pronunciation: /sēˈfäləjē/Definition of psephology noun the statistical study of elections and trends in voting. Derivatives psephologicalPronunciation: /ˌsēfəˈläjikəl/ adjective psephologicallyPronunciation: /-ik(ə)lē/ adverb psephologistPronunciation: /-jist/ noun Origin: 1950s: from Greek psēphos 'pebble, vote' + -logypsephology in other Oxford dictionaries Definition of psephology in the British & World English dictionary