Webster’s Revised Unabridged Dictionary · 1913
Perplexity
Per·plex′i·ty (·ĭ·ty̆), n.; pl. Perplexities (#). [L. perplexitas: cf. F. perplexité.] The quality or state of being perplexed or puzzled; complication; intricacy; entanglement; distraction of mind through doubt or difficulty; embarrassment; bewilderment; doubt.
By their own perplexities involved, They ravel more. Milton.