11 letters · 15 points in Scrabble
adjective characterized by pomp and ceremony and stately display
adjective rigidly formal or bound by convention
originLearned borrowing from Middle French cérémonieux (modern French cérémonieux) or directly from its etymon Latin caerimōniōsus + English -ous (suffix forming adjectives from nouns, denoting the presence of a quality in any degree (typically an abundance)). Caerimōniōsus is derived from Latin caerimōnia (“awe, reverence, veneration; sacredness, sanctity; religious ceremony, ritual”) (possibly…
Etymology from Wiktionary, CC BY-SA 3.0