trip·li·cate 
(trĭplĭ-kĭt)
(trĭplĭ-kĭt)n.
One of a set of three identical objects or copies.
tr.v. (-kāt′) trip·li·cat·ed, trip·li·cat·ing, trip·li·cates
1. To make threefold; triple.
2. To make three identical copies of.
[From Middle English, triple, from Latin triplicātus, past participle of triplicāre, to triple, from triplex, triplic-, threefold; see TRIPLEX.]
tripli·cate·ly adv.
trip′li·cation n.