What is the meaning of Cognate?

Allied by blood; kindred by birth; specifically related on the mother's side.

Of the same or a similar nature; of the same family; proceeding from the same stock or root.

Descended from the same source lexemes (same etymons) of an ancestor language.

One of a number of things allied in origin or nature.

One who is related to another on the female side.

One who is related to another, both having descended from a common ancestor through legal marriages.

A word either descended from the same base word of the same ancestor language as the given word, or judged to be a regular reflex of the same reconstructed root of proto-language as the given word.

plural of cognata

vocative masculine singular of cognātus

Source: wiktionary.org