doublehearted

From double +‎ hearted.

doublehearted (comparative more doublehearted, superlative most doublehearted)

1. deceitful; treacherous; double-crossing.
   • 1636, G[eorge] S[andys], “(please specify the page)”, in A Paraphrase upon the Psalmes of David. And upon the Hymnes Dispersed throughout the Old and New Testaments, London: [Andrew Hebb […]], →OCLC:

     double-hearted hypocrite

• “doublehearted”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.