Attested: RC Tamion/Tainon/Tamson
Where: The river Taff leading to Cardiff, with mouth around ST1972.
Name origin: Maybe this is another Tam- river name, about which see Tamesis, with an ending in –ion that might have come from a Greek source (similar to Ptolemy) used by the Cosmographer or from a Welsh plural. Or else maybe it is wholly Greek: ταμειον
(or ταμιειον) ‘storehouse, treasury, inner room’, a word well known to Roman authors.
Notes: in RC’s harbour tour between Isca and Aventio.
Last Edited: 10 August 2016