▁Seine ▁est u ary , ▁then ▁along ▁the ▁Atlantic ▁coast ▁to ▁the ▁Lo ire ▁est u ary ▁and , ▁according ▁to ▁several ▁sources , ▁maybe ▁to ▁the ▁G aron ne ▁est u ary . ▁This ▁term ▁probably ▁comes ▁from ▁a ▁Gall ic ▁word , ▁are mor ica , ▁which ▁means ▁" close ▁to ▁the ▁sea ". ▁Another ▁name , ▁Let au ia ▁( in ▁English ▁" L it av is "), ▁was ▁used ▁until ▁the ▁ 1 2 th ▁century . ▁It ▁possibly ▁means ▁" wide ▁and ▁flat " ▁or ▁" to ▁expand " ▁and ▁it ▁gave ▁the ▁Wel sh ▁name ▁for ▁Brit t any : ▁L ly da w . ▁ ▁After ▁the ▁fall ▁of ▁the ▁Western ▁Roman ▁Empire , ▁many ▁Brit ons ▁settled ▁in ▁western ▁Arm or ica , ▁and ▁the ▁region ▁started ▁to ▁be ▁called ▁Britann ia , ▁although ▁this ▁name ▁only ▁replaced ▁Arm or ica ▁in ▁the ▁sixth ▁century ▁or ▁perhaps ▁by ▁the ▁end ▁of ▁the ▁fifth . ▁Later , ▁authors ▁like ▁Geoff rey ▁of ▁Mon mouth ▁used ▁the ▁terms ▁Britann ia ▁minor ▁and ▁Britann ia ▁major ▁to ▁distinguish ▁Brit t any ▁from ▁Britain . ▁ ▁Bre ton - spe aking ▁people ▁may ▁pron ounce ▁the ▁word ▁Bre iz h ▁in ▁two ▁different ▁ways , ▁according ▁to ▁their ▁region ▁of ▁origin . ▁Bre ton ▁can ▁be ▁divided ▁into ▁two ▁main ▁dialect s : ▁the ▁K LT ▁( K erne - Le on - T reg or ) ▁and ▁the ▁dialect ▁of ▁V annes . ▁K LT ▁speak ers ▁pron