siderion
From LSJ
ἐγώ εἰμι τὸ φῶς τοῦ κόσμου· ὁ ἀκολουθῶν μοι οὐ μὴ περιπατήσῃ ἐν τῇ σκοτίᾳ ἀλλ' ἕξει τὸ φῶς τῆς ζωῆς → I am the light of the world; he that followeth me shall not walk in darkness but shall have the light of life (John 8:12)
Latin > English (Lewis & Short)
sĭdērĭon: ii, n., = σιδήριον,
I the plant ironwort, vervain, Plin. 25, 4, 15, § 34; 26, 14, 87, § 140.
Latin > French (Gaffiot 2016)
sĭdērĭŏn, ĭī, n. (σιδήριον), verveine : Plin. 25, 34.
Latin > German (Georges)
sidērion, iī, n. (σιδήριον), die Pflanze Eisenkraut, Plin. 25, 34 u.a.