Enjambment, from the French meaning “a striding over,” is a poetic term for the continuation of a sentence or phrase from one line of poetry to the next. An enjambed line typically lacks punctuation at its line break, so the reader is carried smoothly and swiftly—without interruption—to the next line of the poem. Lines without enjambment are end-stopped.
A non-enjambed example would be
After the bell rang, I caught the bus home.
While it would be enjambment if we split the second phrase over the line-ending:
After the bell rang, I caught The bus home.