**timeworn** (adj.)

> That has been practised or adhered to for a long time; old, ancient.
> 
> **1840** It is not only a **time-worn** custom with the Spaniards and Portuguese, but is a frequent practice in parts of our own southern
> states.  
>*Around World* vol. I. v. 61
> 
> **1954** The bearded Arabs in their traditional clothes, the more rustical among them as openly delighted as children with his **time-worn**
> tricks.  
>J. Huxley, *From Antique Land* viii. 135
>  
> **2006** The more graceful and **timeworn** tradition of the Southern plantation house. E. Coffman, *Alone in Dark* v. 39  
>[OED]

----------------------

> Because a person of psychological and spiritual substance is a result
> of the committed pursuit of self-knowledge. This quest marks the
> **timeworn path** outlined by many of the great philosophers and religious figures of the past and present.  
>[Bud Harris; *Sacred
> Selfishness*][1] (2011)

Note, however, that any positive connotation is absent in contexts where *timeworn* means *hackneyed*.

  [1]: https://www.google.com/books/edition/Sacred_Selfishness/gaRke3K19DgC?hl=en&gbpv=1&dq=%22timeworn%20path%22&pg=PR10&printsec=frontcover