PRICELESS
ADJECTIVES
► IMPRETIABLE invaluable, priceless → 1638 obs.
► INAPPRECIABLE that cannot be valued or esteemed; invaluable, priceless → 1787 obs.
NOUNS
► GEM an object of rare beauty or priceless worth; the choicest part of anything; something greatly prized, a ‘treasure’ → c1560
Lexicophilia 