yetkisiyle

Yetkisiyle is a Turkish postpositional expression meaning “with his/her authority” or “by virtue of one’s authority.” It is formed from the noun yetki (authority) plus the third‑person possessive suffix -si and the instrumental suffix -yle (an instrumental form equivalent to ile). The result is a single word that functions to attribute an action to someone’s official power or authorization.

In usage, yetkisiyle attributes actions to a person or body that holds formal power, such as a government official, manager, or institution. It is common in formal writing, journalism, and legal or administrative contexts to indicate that an act was undertaken under official backing rather than as a mere personal decision. The phrase can convey legitimacy and official capacity, and in some contexts may also imply the authority to compel or guide others.

Grammar and nuance: yetkisiyle operates as an adverbial or modifying phrase that denotes the means or basis of an action—doing something with or by virtue of one’s authority. It is typically used with verbs of decision, instruction, or enforcement, and appears more frequently in formal registers. It is not a statement about permission granted apart from authority; rather, it emphasizes the exercise of official power or authorization.

Related terms include yetki (authority), yetkili (authorized person), yetkilendirmek (to authorize), and yetkisini kullanmak (to use one’s authority). Examples include “Bakan, yetkisiyle kararnameyi imzaladı” and “Polis, yetkisiyle hareket etti.”