This is the 9632nd most frequent Catalan word.
legitimat
"Legitimat" in Catalan means "legitimate" or "lawful" in English.
In this sentence, 'legítima' is used as an adjective to describe an action that is considered lawful or justified.
Té dret a defensar-se; la seva acció és legítima.
He has the right to defend himself; his action is legitimate.
Here, 'legitimat' is the past participle of the verb 'legitimar', indicating that the government has made the measures acceptable or validated them.
El govern ha legitimat les mesures preses recentment.
The government has legitimized the measures taken recently.
In this case, 'legítima' qualifies the theory as being reasonable or credible prior to contradictory evidence being presented.