You would think, given the vast tribe of verbal compounds with inter- as a prefix, that a few species of intrā-compounds would also inhabit that wood of the Latin dictionary. In fact, they are highly endangered, perhaps even extinct. Here are a few compound adjectives and nouns that I discovered; the verbs were nowhere to be found.
- intrābilis (adj)—possible to enter
- intrāclusus (adj)—shut in, enclosed
- intrāmeātus, -ūs (n)—a journey within
- intrāmūrānus (adj)—within the walls
- intrāneus (adj)—within