Definition of hoar in English:



literary, archaic
  • Greyish white; grey or grey-haired with age.

    • ‘These depth hoar complexes, as they are called, can usually be counted as annual layers in the top portion of the GISP2 core.’
    • ‘Gertrude does speak of a willow which ‘grows askant the brook / That shows his hoar leaves in the glassy stream.’’
    grey, greying, greyish, silver, silvery, snowy, snowy-white, white, whitish, grizzly, hoary, salt-and-pepper
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mass nounliterary, archaic
  • Hoar frost.

    • ‘Summer temperatures are hot in the sheltered valleys, winter temperatures fall well below zero and hoar frosts are common.’
    • ‘There is still some depth hoar on the ground, but fairly consistent, and more importantly, frozen layers above.’
    • ‘Depth hoar develops when a large, vertical temperature gradient causes vapour to sublime, diffuse and crystallize in a layer.’
    • ‘Everything - the trees, the ground, Guiromélans's clothes - is covered with a thick coat of hoar.’
    • ‘Hector noticed spicules of rime adorning the packing-case shelves like fluffy moulds and hoar on his own beard.’


Old English hār, of Germanic origin; related to German hehr ‘majestic, noble’.