Charles Darwin's discovery explained the diversity of life.
, all based on the root drag 'dear') has been used as an equivalent for Charles (Karel, etc
In the form Charles, the initial spelling ch- corresponds to the palatalization of the Latin group ca- to [ta] in Central Old French (Francien) and the final -s to the former subjective case (cas sujet) of masculine names in Old French like in Giles or James (< Latin -us, see Spanish/ Portuguese Carlos)

