Bible Dictionaries
O'

Webster's Dictionary

(1):

A prefix to Irish family names, which signifies grandson or descendant of, and is a character of dignity; as, O'Neil, O'Carrol.

(2):

(prep.) A shortened form of of or on.

Bibliography Information
Webster, Noah. Entry for 'O''. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​o/o.html. 1828.