This is the 10282nd most frequent French word.
inquiéter
To worry or disturb.
Here, 'inquiète' is used in a reflexive form 't'inquiète' to convey personal concern or worry.
Ne t'inquiète pas pour demain, tout ira bien.
Don't worry about tomorrow, everything will be fine.
'Inquiète' is used to express a feeling of worry affecting someone due to an external situation.
Cela m'inquiète qu'il soit en retard.
It worries me that he is late.
'Inquiéter' is used transitively to express causing concern or worry to others.