érhetett
érhetett is a Hungarian verb form. It is the past tense, third-person singular conditional mood of the verb érni. The verb érni has several meanings in Hungarian, including to reach, to ripen, to be worth, to feel, and to understand. The form éretett thus indicates a hypothetical or potential past action related to one of these meanings.
For example, if someone had the opportunity to reach a destination but did not, one might say