To spread, pour, or spread out around something; to diffuse or distribute all around.
From Latin circumfundere (to pour around), combining circum- and fundere (to pour). Related to 'fuse' and 'confuse' through the Latin root.
This is the verb that gives us 'circumfusion'—when you pour water into a glass, it circumfuses around the edges, spreading throughout the container evenly.
Complete word intelligence in one call. Free tier — 50 lookups/day.