  A search for anomalous pseudoscalar couplings of the Higgs boson H to
electroweak vector bosons V (= W or Z) in a sample of proton-proton collision
events corresponding to an integrated luminosity of 18.9 inverse femtobarns at
a center-of-mass energy of 8 TeV is presented. Events consistent with the
topology of associated VH production, where the Higgs boson decays to a pair of
bottom quarks and the vector boson decays leptonically, are analyzed. The
consistency of data with a potential pseudoscalar contribution to the HVV
interaction, expressed by the effective pseudoscalar cross section fractions
f[a3], is assessed by means of profile likelihood scans. Results are given for
the VH channels alone and for a combined analysis of the VH and previously
published H to VV channels. Under certain assumptions, f[a3](ZZ) > 0.0034 is
excluded at 95% confidence level in the combination. Scenarios in which these
assumptions are relaxed are also considered.
