introspect (v.) Look up introspect at Dictionary.com
1680s, "to look into" (trans.), from Latin introspectus, past participle of introspicere "look at, look into; examine, observe attentively," from intro- "inward" (see intro-) + specere "to look at" (see scope (n.1)). Meaning "look within, search one's feelings or thoughts" is from 1884, a back-formation from introspection. Related: Introspected; introspecting.