(1) pur-eco (纯洁), pur-ema (爱干净的),
pur-igi (提纯，使干净), pur-ig-ilo (清洁工具), pur-ighi (净化，变干净),
pur-isto (清洁工), pur-ulo (干净的人，无罪过的人), mal-pura (不纯的，肮脏的),
mal-pur-ajho (脏物), mal-pur-eco (不纯，肮脏), mal-pur-igi
(弄脏), mal-pur-ighi (变脏), mal-pur-ulo (肮脏的人，有罪过的人)
(2) achet-ado (购买), ahet-anto (买主),
achet-ebla (可购买的), achet-ejo (商店), achet-isto (采购员),
re-acheti (重新买回)
