“…In this article, we zoom in on Britain and Ireland, a configuration with a long history in areal linguistics. Linguistic areas containing or intersecting with Britain and Ireland have, for example, been proposed in Morris -Jones 1900, Pokorny 1927, Wagner 1959, 1964, Haspelmath 2001, Wehr 2005, and Hickey 2012, 2017a, to mention but a few, and accounts of possible Celtic influence on English include Preusler 1938, Tolkien 1963, Tristram 1999, Vezzosi 2005, Lange 2007, Lutz 2009, Poppe 2009, Schumacher 2009, and Irslinger 2013, 2014. This configuration is ideal for this kind of investigation because the sociocultural context is well understood, the geospatial setting is easily definable, and the languages spoken in this configuration are rather well documented over a long span of time.…”