| Term | Definition |
| INTER | L. between |
| interloper | one who intrudes by meddling or trespassing on the rights of others |
| internecine | 1. very destructive to both sides in a conflict; involving slaughter and carnage 2. pertaining to struggle or conflict within a group, organization, or nation |
| interpolate | 1. to insert or add something between other parts, esp. in a text or written work 2. to introduce material that severely alters a text or falsifies it |
| interregnum | 1. any period of time when a state is without a ruler or has a provisional gov't, esp. between the reign of a sovereign and a successor 2. an interval between controlling elements; an interruption in an otherwise continuous function or process |
| PONO, PONERE, POSUI, POSITUM | L. to put, to place |
| interpose | 1. to insert between parts of something; to interject in a conversation 2. to apply pressure or influence; to meddle; to interfere |
| juxtapose | to place side by side |
| PROPE, PROPINQUUS | L. near |
| propinquity | 1. nearness; proximity 2. kinship |
| rapprochement | reconciliation; restoration of cordial relations, esp. between two countries |
| QUIES, QUIETIS | L. quiet, rest |
| QUIESCO, QUIESCERE, QUIEVI, QUIETUM | L. to rest, to remain quiet |
| quiescent | at rest; dormant; motionless |
| acquiesce | to agree or consent without any obligation |
| requiem | a mass or service for the repose of departed souls; music, poetry, or other composition for the dead |
| unrequited | not reciprocal; not given in payment or returned in kind |
| TRUDO, TRUDERE, TRUSI, TRUSUM | L. to push |
| abstruse | difficult to understand; complex |
| extrude | to push or thrust out a liquid or malleable substance that retains or solidifies into a predetermined shape |
| obtrude | 1. to force one's ideas or oneself insistently upon others 2. to thrust or push out; to protrude noticeably, often in an undesirable way |