élénkségének
Élénkségének is a Hungarian word that translates to "its liveliness" or "its vivacity." It is the possessive form of the noun "élénkség," which means liveliness, vivacity, or animation. The suffix "-ének" indicates the third-person singular possessive, referring to something belonging to "it."
The word can be used in various contexts to describe the energetic or spirited nature of something.