What is the meaning of the word 'duplicitous'?
Given to or marked by deliberate deceptiveness in behavior or speech.
deceitful, treacherous, of betrayl
It's not clear if "duplicit" is a word. Most dictionaries don't list it. The Oxford English Dictionary does not list it. The OED lists "duplicity" as a word since the 15th Century. The OED's supplement lists "duplicitous" since 1961. An Internet search will turn up "duplicit" in political blog headlines, but the meaning appears to be identical to "duplicitous." It also arises in computer science postings, where it may be a term of art, or…