Not 100% sure. A "cesura" is a break; it can be silent or it can be manifested as a morpheme. Below is a definition of its use in poetry, but it is also used in theoretical linguistics.

A cæsura, in prosody, is an audible pause that breaks up a long line of verse.
en.wikipedia.org/wiki/Cesura

In other words, by theory-internal assumptions the phonological component is a filter for ... in fact, is **separated from it by a syntactic-prosodic cesura**. ...
www1.uni-hamburg.de/SFB538//aktuelles/E_Koll.doc

Even if the morpheme di **serves as a cesura**, it is not necessary to discern segments in the lines. All the lexemes are made up of two syllables each as it is ...
stateless.freehosting.net/Poietics%20of%20the%20Pantun.htm

In internal position, in the union of base and morpheme, the principal case in the whole ... Of the 8 apparent exceptions, 7 are found **after the cesura** in ...
links.jstor.org/sici?sici=0097-8507(193409)10%3A3%3C235%3ASLAIWV%3E2.0.CO%3B2-Z