The Constitutive Other often denotes a person Other than one's self hence, the Other is identified as different thus the spelling often is capitalized.
interact
interaction
interactive
intercede
intercept
interception
interchange
interchangeable
interchangeably
intercom
interconnect
interconnected
intercontinental
intercourse
interdependence
interdependent
interest
interested
interesting
interestingly
interface
interfere
interference
interim
interior
interject
interjection
interlock
interlocking
interloper
interlude
intermarriage
intermarry
intermediary
intermediate
interminable
intermission
intermittent
interviewert
intern
internal
internally
international
internationally