Structure
Hemistich
From Greek hemi (half) + stichos (line). In Old English poetry, both hemistichs must be alliteratively linked. In classical Arabic poetry, each hemistich (misra) is a unit of sense.
Definition
Half a line of verse, created by the division of the caesura; each half-line is a hemistich.
Example
'To err is human; || to forgive, divine.' — each of the two halves is a hemistich.