Cognate (disambiguation)

Cognate (cognatus, "related by birth") may mean:


 * Cognates, words that have a common etymological origin
 * False cognates, words that appear to be cognates, but are not
 * Cognate object, a verb's object that is etymologically related to the verb
 * Cognate (kinship), person who shares a common ancestor
 * Cognate linkage, a kinematic linkage that generates the same coupler curve as another linkage of a different geometry
 * Cognate interaction, in immunology denotes the specific, contact-dependent interaction between two cells.