time-honored

[ tahym-on-erd ]

/ ˈtaɪmˌɒn ərd /

revered or respected because of antiquity and long continuance: a time-honored custom.

Also especially British, time-hon·oured.

Origin of time-honored

First recorded in 1585–95

Often it adjusts itself along time-honoured lines, and with time-honoured results.

Americans and Others |Agnes Repplier
But there's one man who I should have said, to use a time-honoured phrase, wouldn't let me operate on a sick cat.

Red Pepper's Patients |Grace S. Richmond
Now the school of glomery was nothing else than the time-honoured Cambridge school of grammar.

Cambridge |Mildred Anna Rosalie Tuker
And here, perhaps, we have the key to the time-honoured sanctity of Sheikh Adi.

The Cradle of Mankind |W.A. Wigram

Instinctively they flocked into cities and organised municipal governments after the time-honoured Spanish form.

The South American Republics, Part II (of 2) |Thomas C. Dawson

time-honoured

having been observed for a long time and sanctioned by custom