To a T
I am looking for the origin of the phrase, "To a T" meaning a perfect fit; exact or precise.

example: After 50 years of marriage my grandfather can describe my grandmother to a T.

UPDATE: I was sniffing around a few other sites and found two possible suggestions for this phrase.

1. The "T" could be a reference to a T-square, a tool that provides very precise measurement of right angles. However, the phrase may have been in use prior to the invention of the T-square.

2. The "T" may stand for "Title" which refers to a small, precise brush stroke or printer's mark used in Hebrew manuscripts to differentiate between the character "dalet" and the caracter "resh".

The above information was provided by James Briggs on the Phrase Derivations Discussions Forum.(

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