Decorate
mid 16th century (in the sense ‘to grace or honour’): from Latin decoratus ‘embellished’ (past participle of decorare ), from decus, decor- ‘beauty, honour, or embellishment’.
wiktionary
From Latin decoratus, past participle of decorare(“to adorn, distinguish, honor”), from decus(“ornament, grace, dignity, honor”), akin to decor(“elegance, grace, beauty, ornament”), from decet(“adorn, befit”).
etymonline
decorate (v.)
1520s, "deck with something becoming or ornamental, adorn, beautify," from Latin decoratus, past participle of decorare "to decorate, adorn, embellish, beautify," from decus (genitive decoris) "an ornament; grace, dignity, honor," from PIE root *dek- "to take, accept."
Earlier was decoren (early 15c.) with past-participle adjective decorat. Meaning "confer distinction upon by means of a badge or medal of honor" is from 1816. Related: Decorated; decorating.
