diffuse

spread out; wordy or not concentrated

Roots

dis- / dif-: apart, away, not, reversal, or disruption
fund / fus: pour, pour out, or melt into a flow

Other words with the fund / fus root

confound: to confuse, mix up, or bewilder
confuse: to make unclear or hard to separate
fuse: to join or melt together
fusion: a joining or blending into one
futile: unable to produce a useful result
infuse: to fill or soak with something
profuse: abundant, lavish, or poured out in large amount

Diffuse is poured apart: light, scent, attention, or language spreads until it loses a tight center.

The explanation was so diffuse that the main point disappeared inside the details.

Diffuse can be physical or verbal. Smoke diffuses through a room; a diffuse essay spreads attention in too many directions. In both cases, the force is no longer gathered.