10 letters · 13 points in Scrabble
verb be a mystery or bewildering to
adjective filled with bewilderment
originFrom nonplus (“state of bewilderment or perplexity”, noun) or nonplus (“to bewilder or perplex (someone)”, verb) + -ed (suffix forming adjectives, and the past tense and past participle forms of verbs). Nonplus (noun) is derived from Latin nōn plūs (“no further, no more”), from nōn (“not”) + plūs (“additionally, more; further”) (ultimately from Proto-Indo-European *pleh₁- (“to fill”)). The…
Etymology from Wiktionary, CC BY-SA 3.0