1.  complicate(v = verb.change) perplex - make more complicated; "There was a new development that complicated the matter"
is one way to alter, change, modify
Antonym: simplify
Derived forms noun complication₁, noun complication₄, noun complication₂, noun complication₃
Sample sentences: Somebody ----s something; Something ----s something

2.  complicate(v = verb.change) elaborate, rarify, refine - make more complex, intricate, or richer; "refine a design or pattern"
is one way to alter, change, modify
Derived forms noun complication₁, noun complication₅
Sample sentences: Somebody ----s something; Something ----s something

1.  Composed of two or more parts united; complex; complicated; involved. [1913 Webster]
"How poor, how rich, how abject, how august,
How complicate, how wonderful is man!" [1913 Webster]

2.  Folded together, or upon itself, with the fold running lengthwise. [1913 Webster]

   To fold or twist together; to combine intricately; to make complex; to combine or associate so as to make intricate or difficult. [1913 Webster]
"Nor can his complicated sinews fail." [1913 Webster]
"Avarice and luxury very often become one complicated principle of action." [1913 Webster]
"When the disease is complicated with other diseases." [1913 Webster]

complicate, v.tr. & intr.
1 (often foll. by with) make or become difficult, confused, or complex.
2 (as complicated adj.) complex; intricate.

Derivative:
complicatedly adv. complicatedness n.

Etymology:
L complicare complicat- (as COM-, plicare fold)

VB  complexify, complicate.

VB  derange, disarrange, misarrange, displace, misplace, mislay, discompose, disorder, deorganize, discombobulate, disorganize, embroil, unsettle, disturb, confuse, trouble, perturb, jumble, tumble, shuffle, randomize, huddle, muddle, toss, hustle, fumble, riot, bring into disorder, put into disorder, throw into disorder, muss, break the ranks, disconcert, convulse, break in upon, unhinge, dislocate, put out of joint, throw out of gear, turn topsy-turvy, bedevil, complicate, involve, perplex, confound, imbrangle, embrangle, tangle, entangle, ravel, tousle, towzle, dishevel, ruffle, rumple, litter, scatter, mix, rearrange.