interlope
In`ter*lope", v. i. [imp. & p. p. Interloped; p. pr. & vb. n. Interloping.] Etym: [See Interloper.] Defn: To run between parties and intercept without right the advantage that one should gain from the other; to traffic without a proper license; to intrude; to forestall others; to intermeddle.