Kumbumba (go down, subside) zvinoreva kuserera, kuderera kana kudzikira pahuwandu, kugona kana hupfumi. Vamwe vanoti kumbomba. Kudzvotota kana kudzveva (Subside as river does). kureva kuserera kwerwizi. Kumbovova, kumbomba kana kumbemba (to go down as floods, tyres etc.). Kumbovera (Collapse inwards) kana kufototoka. Kumhovera (sink , as when walking in deep mud). fova (flatten, as of a tyre or disappear, as of a swelling). fovedza (impress, as with a finger; press; cause to dent). fovedzeka (become impressed; be dimpled) Chikwata chenhabvu chiya chazombumba manje. Rwizi rwanga rwambumba pavazoyambuka kuenda mhiri. Rukova rwakati dzvototo: the river has gone down. Kuserera kana kumbeva (to subside as flood or storm). Kuserereka (to crouch; to sink gradually in water). Kusereredza (to cause to abate; to cause to sink). Kumbomba (Subside. Go down (e g river in flood) kana kuserera. Kumbomboma (Collapse - e.g. building -kuzhokoteka; 2. to crumble - e.g. riverbank). Kumbombomedza (1. Cause to sink or submerge. 2. Cause to collapse or crumble).