Ἐλένη
From LSJ
Φίλος με βλάπτων (λυπῶν) οὐδὲν ἐχθροῦ διαφέρει → Laedens amicus distat inimico nihil → Ein Freund, der schadet, ist ganz gelich mir einem Feind
Frisk Etymological English
Grammatical information: f.
Meaning: daugher of Zeus and Leda, sister of the Dioskour-oi, wife of Menelaos (Il.).
Origin: XX [etym. unknown]
Etymology: Nilsson Gr. Rel. 1, 315 assumes that Helena is an old Minoan goddess of vegetation, who was connected with the tree-cult (diff. v. Wilamowitz Glaube 1, 231 n. 1). From the plant name ἑλένιον (Thphr., Dsc.), s. Strömberg Pflanzennamen 130. - Connection with the appellative ἑλένη (s. ἑλάνη), is quite uncertain. See e.g. J. Linsay, Helen of Troy, 1974, 209ff.