Balázs Déri's opinion :
Walsh or welsh people in Wales may partly descend from Esh-Allemma-Wa'el son of As-Ta-ya-Ra-Wa-Shet-Dewa who was chief of Asshe-Megra-yan-Na's tribe at leaving Mesta-Rawama towards the Holy Land in Asia-America. He is called by germans Almann son of Deuto-Merkuri.
Twashtri (Ta-wa-as-shet-ra-ya ) is how indians call their Hermés.
Kymri name may also come from Merkurius meaning Mer-Ku-Ri becoming Ku-(i)-Mer-Ri,and this is the reason welsh language is more similar to german than other celtic dialects.
Cymru however was already previously named of A-Ma-Kewa-Ra son of A-Ma-Nasshe-Ha and father of A-Gal-Leg-Red-Da that is Kewa-Ma-Ra-A.
Jews and christians call them Shalammi'el,Tsurishadday,Shimeon,Mitsraim,Makir,Gilead and Manassheh.
See German,Aleman,Hermann,Gallego,Normann,Hansen,Schwed,Larsen,Schwab,Német,Hollander,Baier,Deutsch,Teutsch and others !