hoar
adj : showing characteristics of age, especially having gray or
white hair; "whose beard with age is hoar"-Coleridge;
"nodded his hoary head" [syn: {gray}, {grey}, {gray-haired},
{grey-haired}, {gray-headed}, {grey-headed}, {hoary},
{white-haired}]
n : ice crystals forming a white deposit (especially on objects
outside) [syn: {frost}, {hoarfrost}, {rime}]