English feminine form of Clement [q.v.] via Old French from Latin "mild" or "merciful".
More frequent than either the male name Clement or the female name Clementine in the 1841 Census of Aberdeenshire. There are a large number of individual spelling variations on this name. As these are all in the vowels, Soundex searching should find all entries.
This name is used in older Latin documents, with appropriate case ending changes, as an equivalent for Clemency and Clementine.