tárolhatott
The Hungarian word "tárolhatott" is the past tense, conditional mood, third-person singular form of the verb "tárolni". "Tárolni" translates to "to store" or "to keep" in English. Therefore, "tárolhatott" specifically means "he/she/it could have stored" or "he/she/it might have stored". This grammatical construction indicates a past possibility or an unfulfilled potential action.
For example, if someone said "Az adatokat tárolhatott volna a szerveren" (The data could have been stored