sakci -sak- gismu

x₁ sucks/is suction/vacuum/relatively low pressure of fluid/gas x₂ relative to high pressure x₃.

Also suck object/fluid (= sakcpu or sakmuvgau). See also cokcu, lacpu, flecu.

In notes:

cokcu: x₁ soaks up/absorbs/sucks up x₂ from x₃ into x₄; x₁ is an absorbant.
flecu: x₁ is a current/flow/river of/in x₂ flowing in direction to/towards x₃ from direction/source x₄.
lacpu: x₁ pulls/tugs/draws/drags x₂ by handle/at locus x₃.
maisru: x₁=s₁=m₁ is the material environment/surrounding material (i.e. gaseous/liquid atmosphere, vacuum, etc.) enclosing x₂=s₂ in direction(s)/dimensions(s)/plane x₃=s₃=m₃, of type/composition including x₄=m₂.
sakcinki: x₁ is a true bug of species x₂ (order Hemiptera),
sakcti: c₁ consumes c₂=s₂ by means of suction; c₁ sucks or slurps food/beverage c₂=s₂.
sakyva'u: v₁=s₁ inhales v₂=s₂.
selca'u: x₂=c₁ is space/hyperspace/volume/region/room occupied by x₁=c₂.
tolsakci: s₁ blows/exhales fluid/gas from high pressure of s₂ to low pressure of s₃.
zbisakci: s₁ sniffles fluid/gas/powder s₂ through the nose.