This is the 409th most frequent Finnish word.
häntä
"Tail" or "him/her" (depending on context).
Here, 'häntä' is the partitive form of the personal pronoun 'hän', used after the verb 'näin' which requires this form when referring to the direct object in this context.
Näin häntä koulun pihalla.
I saw him/her in the school yard.
In this sentence, 'häntä' is again in the partitive case, following the verb 'rakastaa', which semantically dictates the partitive case for its object.
Hän rakastaa häntä syvästi.
He/She loves him/her deeply.
Here, 'häntä' is in the partitive case, indicating the object of the prepositional phrase 'häntä varten', which means 'for him/her', showing purpose or intention.