GRC
Bailly
ήεσσα, ῆεν [ῐ] poét. c. σιδήρεος, NIC. Al. 51 ; MAN. 1, 313.
Bailly 2020 Hugo Chávez Gérard Gréco, André Charbonnet, Mark De Wilde, Bernard Maréchal & contributeurs / Licence Creative Commons Attribution - Pas d'Utilisation Commerciale - Pas de Modification — « CC BY-NC-ND 4.0 »
LSJ
εσσα, εν, poet. for σιδήρεος, Nic. Al. 51, Man. 1.313.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)
Pape
εσσα, εν, poet. = σιδήρεος ; Nic. Al. 31 ; Man. 1.313.
Pape, Griechisch-deutsches Handwörterbuch (3. Aufl., 1914)