@Olivier5,
Olivier5 wrote: The English word "genious" also comes from the same root.
This is definitely not true. If we perform the most elementary verification and validation test of the statement, according to the online etymology dictionary for example (at
www.etymonline.com) the etymology of
genious is:
genius (n.) late 14c., "tutelary god (classical or pagan)," from Latin genius "guardian deity or spirit which watches over each person from birth; spirit, incarnation, wit, talent;" also "prophetic skill," originally "generative power," from root of gignere "beget, produce" (see kin), from PIE root *gen- "produce." Sense of "characteristic disposition" is from 1580s. Meaning "person of natural intelligence or talent" and that of "natural ability" are first recorded 1640s.
_____________________
N.B. In linguistics a homonym is a group of words that share the same spelling (syntax) and pronunciation but have different meanings. On the other side etymology is the account of or the facts relating to the formation of a word and the development of its meaning (semantics).
One cannot infer semantics on the grounds of homonyms (syntax), especially for words from different languages that have nothing to do with each other (that are not even from one and the same language group).