Modern Greek lemma

αποδειχθήκαν

apodeichthíkan — “third-person plural simple past of αποδεικνύομαι”

third-person plural simple past of αποδεικνύομαι (apodeiknýomai), the passive of αποδεικνύω (apodeiknýo)

Definitions from English Wiktionary via kaikki.org (wiktextract), licensed CC BY-SA 4.0.