caligation en · NOUN
Etymology
Borrowed from Latin caligatio, from caligare (“to emit vapour, to be dark”), from caligo (“mist, darkness”).
Meanings
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(obsolete, rare, uncountable) dimness; cloudiness
Now instead of a diminution or imperfect vision in the Moll, we affirm an abolition or totall privation; in stead of caligation or dimnesse, we conclude a cecity or blindness, which hath been frequently inferred concerning other animals;
1646/50, Sir Thomas Browne, Pseudodoxia Epidemica: