This is the 747th most frequent Slovenian word.
ostati
"To remain" or "to stay."
Here, 'ostati' means 'to stay' and is used to indicate staying in a particular location, in this case, at home.
Moram ostati doma, ker sem zbolel.
I have to stay at home because I am sick.
In this sentence, 'ostati' is used in its imperative form, advising someone to maintain their current state of calmness.
Ostani miren, vse bo v redu.
Stay calm, everything will be fine.
'Ostati' in this context means 'to remain,' signifying the continuation of being alive.