D defs.my
Entry 1 sense Webster, 1913

militate against

/mĭl'-ĭt-ātˌ əg-ĕnst'/ · mil·i·tate a·gainst · IPA
01 v. t. To argue against; to cast doubt on; -- used in reference to facts which tend to disprove a hypothesis; as, the absence of a correlation of …
  1. 1.
    To argue against; to cast doubt on; -- used in reference to facts which tend to disprove a hypothesis; as, the absence of a correlation of budget deficits with inflation militates against any causal relation between the two. Opposite of support.