Literally translated, the long form of the name means: [The] church of [St.] Mary (Llanfair) [of the] pool (pwll) of the white hazels (gwyn gyll) near to [lit. over against] (go ger) the fierce whirlpool (y chwyrn drobwll) [and] the church of [St.] Tysilio (Llantysilio) of the red cave (-ogo[f] goch).