Old-hat and Of old

Old-hat adjective - Repeated too often; overfamiliar through overuse.

Of old and old-hat are semantically related in old-fashioned topic. In some cases you can use "Of old" instead an adjective phrase "Old-hat", when it comes to topics like antiquated.

Old-hat and of old are semantically related in old-fashioned topic. Sometimes you can use "Old-hat" instead an adjective phrase "Of old", if it concerns topics such as antiquated.