Meaning

noun an atmosphere in which visibility is reduced because of a cloud of some substance

noun the quality of being indistinct and without sharp outlines

originEtymology tree English foggy Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English fogginess From foggy + -ness.

Etymology from Wiktionary, CC BY-SA 3.0