Drustan

Older form of TRISTAN. This name was borne by a 7th-century Scottish saint.

TRISTAN   male   Welsh, English, French, Arthurian Romance
Old French form of the Pictish name Drustan, a diminutive of DRUST. The spelling was altered by association with Latin tristis "sad". Tristan is a character in medieval French tales, probably inspired by older Celtic legends, and ultimately merged into Arthurian legend. According to the story Tristan was sent to Ireland in order to fetch Isolde, who was to be the bride of King Mark of Cornwall. On the way back, Tristan and Isolde accidentally drink a potion which makes them fall in love. Their tragic story was very popular in the Middle Ages, and the name has occasionally been used since that time.
DRUST   male   Ancient Celtic
Pictish name probably derived from Celtic drest meaning "riot" or "tumult". This name was borne by several kings of the Picts, including their last king Drust X, who ruled in the 9th century.
FULL FORMS
ANCIENT CELTIC: Drest, Drust
EQUIVALENTS
ARTHURIAN ROMANCE: Tristan
ENGLISH (BRITISH): Tristram
ENGLISH: Tristan, Tristen, Tristin, Triston
FRENCH: Tristan
PORTUGUESE: Tristão
SPANISH: Tristán
WELSH: Drystan, Tristan, Trystan
FEMININE FORMS
ENGLISH: Trista