tmesis

Separation of the parts of a compound word by one or more intervening words; for example, where I go ever instead of wherever I go.

In grammar, a figure by which a compound word is separated into two parts, and one or more words are inserted between them: as, “of whom be thou ware also” (2 Tim. iv. 15), for “of whom beware thou also.” Also called diacope.

The separation of the parts of a compound word by the intervention of one or more words.

The insertion of one or more words between the components of a compound word.