katna -ka'a- gismu

x1 (tool/blade/force) cuts [through]/splits/divides x2 (object) into pieces x3.

For x1 force, it is a force acting as a blade, not acting upon a blade; agentive cutting (= ka'argau, ka'arzu'e). (cf. kakpa, sraku for cutting into without division; plixa, dakfu, jinci, porpi, spofu, tunta, xrani, fatri, fendi, balre, dilcu)

In notes:

balre
x1 is a blade of tool/weapon x2.
dakfu
x1 is a knife (tool) for cutting x2, with blade of material x3.
dilcu
x1 is a quotient of 'x2/x3' [dividend x2 divided by divisor x3], leaving remainder x4.
fatri
x1 is distributed/allotted/allocated/shared among x2 with shares/portions x3; (x2/x3 fa'u).
fendi
x1 (agent) divides/partitions/separates x2 into sections/parts/ind. x3 by method/partition x4.
jinci
x1 is a pair of shears/scissors for cutting x2.
kakpa
x1 (agent) digs x2 [material] up/out of x3 [source/hole] with limbs/tool(s) x4.
plixa
x1 (agent) plows/furrows/tills [cuts into and turns up] x2 with tool x3 propelled by x4.
porpi
x1 breaks/fractures/shatters/[splits/splinters/cracks] into pieces x2.
spofu
x1 is broken/inoperable/broken down/non-utile/not usable for function x2.
sraku
x1 [abrasive/cutting/scratching object/implement] scratches/[carves]/erodes/cuts [into] x2.
tunta
x1 (object, usually pointed) pokes/jabs/stabs/prods x2 (experiencer).
xrani
x1 (event) injures/harms/damages victim x2 in property x3 (ka) resulting in injury x4 (state).
carka'a
k1 is a rotary saw [rotating cutting tool] cutting/splitting/dividing k2 (object) into pieces k3
crogle
g1 practices sadomasochism with g2=c1 with pain at locus c2.
jvokatna
k1 separates affix compound k2 into its constituent affixes k3; k1 does morphological analysis.
ka'arbatci
b1=k1 bites through b2=k2 (object) on/at specific locus b3 with b4 to pieces k3.
komka'a
ko1=ka1 is a saw [many-bladed tool] cutting/splitting/dividing ka2 into pieces ka3
micka'agau
m1=g1 uses surgical implement k1 to operate on organ(s) k2 of patient m2, as a treatment for ailment m3.
mudyka'apre
p1 is a woodcutter/lumberjack using tool k1 to cut trees of species m2.
nirka'aborvelmikce
mikce4 is a neurosurgical procedure performed on patient mikce2 for ailment mikce3 by mikce1; mikce4 is neurosurgery
saska'ami'i
x1 is a lawnmower for use/function x2
tcecrogau
g1 (person/agent) tortures/inflicts severe pain on x2=c1 at locus x3=c2.
ampute
x1 amputates, surgically removes x2 from x3 leaving remainder x4