Dictionary entry

Perplexity

Webster's Dictionary 1913

Per‐plex″i‐ty (?), 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.