Description:

The term 'treka' refers to sureness or certainty.

Modifier:

As a modifier, 'treka' states that its referent is certain or sure - unlike 'zra', which asserts the truth or goodness of its referent, 'treka' refers to the depth of belief in the referent.

Verb:

The verb form 'trekan' means to be sure or certain. It is an intransitive pali verb that takes an absolutive subject that is feeling a state of certainty. The thing about which one is certain can be introduced with the null preposition (hence, it functions like a coplular verb of feeling).

Noun:

As a noun, 'trekan' refers to the state of certainty, or to a certain thing.