glottolog glow-plug glut-glut gorgoroth gothrough gothuruth groo-groo gulltoppr hollowlog hortougou hothothot hottotrot hull-gull loup-loup ogoh-ogoh out-group outgrowth photoglow photoloop phototool phut-phut plough-up pooh-pooh poto-poto pro-tutor proprotor protoloph pulloullo putt-putt rough-out rowrowrow thoothoor thorough- thorowout thoughtup thourough throw-out throwupto thuortour tolgullow toothwort tortworth touggourt tourgroup trolltoll tuotuorou tuttototo two-throw up-or-out who-whoop woolworth