Definition of "time out of mind" []

• See time immemorial. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "He knew that the Froudes had been settled in Devonshire time out of mind as yeomen with small estates, and that one of them, to whom his own father always referred with contempt, had bought from the Heralds 'College what Gibbon calls the most useless of all coats, a coat of arms."
• "This powerful family had served the Mikados from time out of mind as heads of the Shinto priests, and after the middle of the seventh century, they became ministers or prime ministers."