OPAL
ADJECTIVES
► OPALISH somewhat like opal in colour → 1805
NOUNS
► BLIND-EYE an opal, whose milky colour is like a sightless eye → 1933 Amer. dial.
VERBS
► OPALESCE to exhibit a play of colours or iridescence like that of the opal → 1819
► OPALIZE to exhibit a play of colours like the opal → 1811
Lexicophilia 