n. pl. os·ci·tan·cies
1. The act of yawning.
2. The state of being drowsy or inattentive; dullness.
[From oscitant, yawning, from Latin ōscitāns, ōscitant-, present participle of ōscitāre, to yawn : ōs, mouth; see ōs- in the Appendix of Indo-European roots + citāre, to move; see keiə- in the Appendix of Indo-European roots.]
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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.