Helmo

Old Germanic form of ELMO.

ELMO   male   English, German, Italian
Originally a short form of Germanic names that began with the element helm meaning "helmet, protection". It is also a derivative of ERASMUS, via the old Italian diminutive Ermo. Saint Elmo, also known as Saint Erasmus, was a 4th-century martyr who is the patron of sailors. Saint Elmo's fire is said to be a sign of his protection.
ERASMUS   male   Late Greek (Latinized)
Derived from Greek ερασμιος (erasmios) meaning "beloved". Saint Erasmus, also known as Saint Elmo, was a 4th-century martyr who is the patron saint of sailors. Erasmus was also the name of a Dutch scholar of the Renaissance period.
EQUIVALENTS
GERMAN: Elmo