Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
con-dū̆plĭco, āvi, 1, v. a., to double (ante-class.): cibum, Varr. R. R. 2, 4, 15: divitias, Lucr. 3, 71: primordia rerum, id. 1, 712: quod boni promeritus fueris, conduplicaverit, * Ter. Phorm. 3, 2, 31: tenebrae conduplicantur, Pac. ap. Cic. Div. 1, 14, 24 (Trag. v. 412 Rib.).
Humorously: corpora, of a loving embrace (cf. conduplicatio), Plaut. Ps. 5, 1, 16.