Origin: Ancient Roman
Meaning: a variant spelling of Drusilla, the feminine form of Drusus which is supposedly derived from the name of a Gallic chief killed by a Roman soldier, Drausus, possibly meaning “strong”. I’ve also seen it listed as being derived from Greek drosos meaning “dew”.
I’ve also come across as it being derived from Celtic daru- or derwo- both meaning “oak”.
Dru and Cilla/Silla are diminutive forms of the name.
Variants: Drusilla, Drousilla, Druscilla