The Collaborative International Dictionary of English v.0.48:
Introspect \In`tro*spect"\, v. t. [L. introspectus, p. p. introspicere to look into; intro within + specere to look. See Spy.] To look into or within; to view the inside of. --Bailey. [1913 Webster]WordNet (r) 3.0 (2006):
introspect v 1: reflect on one's own thoughts and feelings