Enjambment

Etymology

From French "enjambement," from "enjamber" (to stride over, encroach), from en- plus "jambe" (leg). The word pictures the sentence stepping over the edge of the line.

noun · /en-JAM-ment/
In poetry, the running-on of a sentence past the end of a line without a pause.
What it names
The engine of tension in free verse — the way a line break withholds, then delivers, meaning as the eye drops to the next line.
Example
The enjambment leaves "I have measured out my life with coffee—" hanging before the next line lands on "spoons."
Related idea
Enjambment is the opposite of the end-stopped line, and works against the caesura, the deliberate pause that falls within a line rather than at its edge.