You can add to this the names of many of the Brandybuck family which are basically Welsh, the idea being that the Stoors of Buckland preserved Welsh names from when they lived in Dunland.
Archet. This is actually an English place-name of Celtic origin. It is used in the nomenclature of Bree to represent a stratum of names older than those in the Common Speech or Hobbit language. So also Bree, an English place-name from a Celtic word for 'hill'. Therefore retain Archet and Bree unaltered, since these names no longer have a recognized meaning in English. Chetwood is a compound of Celtic and English, both elements meaning 'wood'; compare Brill, in Oxfordshire, derived from bree + híll. Therefore in Chetwood retain Chet and translate -wood.