Alexius

Latinized form of the Greek name Αλεξιος (Alexios), a derivative of Αλεξις (see ALEXIS). This was the name of five Byzantine emperors. It was also borne by a 5th-century Syrian saint who is especially venerated in the Eastern Church.

ALEXIS   male & female   German, French, English, Greek, Ancient Greek
From the Greek name Αλεξις (Alexis), which meant "helper" or "defender", derived from Greek αλεξω (alexo) "to defend, to help". This was the name of a 3rd-century BC Greek comic poet, and also of several saints. It is used somewhat interchangeably with the related name Αλεξιος or Alexius, borne by five Byzantine emperors. In the English-speaking world it is more commonly used as a feminine name.
EQUIVALENTS
ANCIENT GREEK: Alexios
BELARUSIAN: Aleksei, Aleksey, Alexei, Alexey, Aliaksei
CATALAN: Aleix
CZECH: Alexej
FINNISH: Aleksi
FRENCH: Alexis
GALICIAN: Aleixo
GERMAN: Alexis
GREEK: Alexis
HUNGARIAN: Elek
ITALIAN: Alessio
MEDIEVAL SLAVIC: Aleksi
POLISH: Aleksy
PORTUGUESE: Aleixo
RUSSIAN: Aleksei, Aleksey, Alexei, Alexey
SLOVAK: Alexej
SLOVENE: Aleksej
SPANISH: Alejo
UKRAINIAN: Aleksei, Aleksey, Alexei, Alexey, Oleksiy, Olexiy
DIMINUTIVES AND SHORT FORMS
CROATIAN: Aljoša
CZECH: Aleš
FINNISH: Ale
RUSSIAN: Aleks, Alyosha, Lyosha
SLOVAK: Aleš
SLOVENE: Aleks, Aleš, Aljoša
UKRAINIAN: Aleks, Oles
FEMININE FORMS
ENGLISH: Alexia, Alexina, Alexis, Alexus, Lexi, Lexia, Lexie, Lexine, Lexus, Lexy
FRENCH: Alexia
ITALIAN: Alessia
OTHER FORMS
ANCIENT GREEK: Alexis