How do you spell Obsolete

Available Definitions:
1)  a. - No longer in use; gone into disuse; disused; neglected; as, an obsolete word; an obsolete statute; -- applied chiefly to words, writings, or observances.
2)  a. - Not very distinct; obscure; rudimental; imperfectly developed; abortive.
3)  v. i. - To become obsolete; to go out of use.