That is really such; thorough, real. Obsolete.

With to. Consistent or exactly agreeing with; mindful or observant of; accurately representing. Now chiefly in true to nature, true to life, true to…

(un-, prefix1 affix 1.)

As an intensifier. In weakened use, emphasizing the exact or particular identity of a following noun: precise, exact. Cf. very, adj. 10b.

As an intensifier. colloquial (chiefly British). your actual ——: used to emphasize the authentic or archetypal status of the specified thing…