Ice crystals forming a white deposit (especially on objects outside).

synonyms: frost, hoarfrost, rime.

Dutch: vorst, rijm, rijp
Polish: mróz, szron

Showing characteristics of age, especially having grey or white hair:
— Whose beard with age is hoar.
— Nodded his hoary head.

synonyms: gray, gray-haired, gray-headed, grey, grey-haired, grey-headed, grizzly, hoary, white-haired.

Roget 128: aged; old etc. 124; elderly, geriatric, senile; matronly, anile^†; in years; ripe, mellow, run to seed, declining, waning, past one's prime; gray, gray-headed; hoar, hoary; venerable, time-worn, antiquated, passe, effete, decrepit, superannuated; advanced in life, advanced in years; stricken in years; wrinkled, marked withthe crow's foot; having one foot in the grave; doting etc. (imbecile) 499; like the last of pea time.    older, elder, eldest; senior; firstborn.    turned of, years old; of a certain age, no chicken, old as Methuselah; ancestral, patriarchal, etc. (ancient) 124; gerontic.    ... show more

Roget 430: white; milk-white, snow-white; snowy; niveous^†, candid, chalky; hoar, hoary; silvery; argent, argentine; canescent^†, cretaceous, lactescent^†.    whitish, creamy, pearly, fair, blond; blanched etc. v.; high in tone, light.    white as a sheet, white as driven snow, white as a lily, white as silver; like ivory etc. n.. ... show more

Polish: posiwiały, przyprószony siwizną, siwy, osiwiały, zsiwiały