adj. clam·mi·er, clam·mi·est
1. Disagreeably moist, sticky, and cold to the touch: a clammy handshake.
2. Damp and unpleasant: clammy weather.
3. Uneasy; apprehensive: The ghost town gave us a clammy feeling.
[Middle English, sticky, probably from clam (from Old English, mud, clay) or from Middle Low German klam, stickiness.]
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.