8 letters · 13 points in Scrabble
noun a person who becomes aware (of things or events) through the senses
noun an expert who observes and comments on something
originEtymology tree English observe Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English observer From observe + -er.
Etymology from Wiktionary, CC BY-SA 3.0