- inter-A position which is in between two (or more) of the kind indicated by the root.
- InterglossaA constructed language devised by Lancelot Hogben (1895–1975).
- interjacentSituated between; lying among.
- interlardTo embellish or vary (something) by interspersing or mixing another thing with it; also, to intersperse or mix (something) into another thing to embellish or vary it; to interweave, to mingle.
- interrexAn official in Ancient Rome who acted as single head of state during the interregnum between two consulates.