Prefix Intra, intro

intravenous

being or occurring within a vein.

intramural

involving students in the same school or college.

intraocular

located or occurring within the eye

introversion

the state of being mainly concerned with your own thoughts

intracoastal

a waterway within the coastal land area

introvert

a shy person; a person turned inward

introspection

to consider one's own internal state or feelings

introduce

to present; to bring; to acquaint

intromit

to send, put, or in; introduce

intrastate

within the boundaries of the state.