Nouns ending in -té are usually feminine.
The suffix marks an abstract quality.
Is vérité masculine or feminine?
lavérité
The rule behind it
91.3% of -té nouns are feminine
In context
La vérité sort de la bouche des enfants.
Out of the mouths of babes.
Je voudrais que tu me dises la vérité.
I want you to tell me the truth.
N'ayez aucune hésitation à dire la vérité.
Never hesitate to tell the truth.