Origin of the name CONSTANTIUS.
Etymology of the
Meaning of the baby name CONSTANTIUS.
Latin origin, meaning "constant," from constans, a word meaning
holding together firmly, and compounded of con (together), and stans,
the participle of the verb sto (I am, or I stand).
indeed, did Constantius become prominent in history in the person of
Flavius Valerius Constantius, that he does not even seem to have had a
prænomen, and his sons and grandsons varied the cognomen by way of
distinction into Constans and
Constantinus. (History of Christian Names, Yonge, 1884).