Family name origins & meanings
- German : from Middle High German blā ‘blue’ (Old High German blāo), applied as a nickname with various senses: someone who habitually wore blue clothes, a dyer, someone with blue eyes, a sickly or pale person, someone with a bluish complexion resulting from poor circulation, etc.
- Jewish (Ashkenazic) : ornamental name, one of the many such Ashkenazic surnames taken from names of colors.
- Catalan : from blau ‘blue’.