Welsh pwll

← Old English pōl (borrowed)

← Irish poll (cognate)

← Scottish Gaelic poll (cognate)

← Latin paludis (mention)

← Latin palus (mention)

← Middle Breton poull (cognate)

→ Welsh Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch (mention)

→ Irish Learpholl (mention)

→ Scottish Gaelic poll (cognate)