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τεθνάναι

Γηράσκω δ᾽ αἰεὶ πολλὰ διδασκόμενος -> I grow old always learning many things
Solon the Athenian

French (Bailly abrégé)

inf. pf. sync. de θνῄσκω.

Russian (Dvoretsky)

τεθνάναι: (ᾰν) inf. pf. к θνῄσκω.