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ONADobsolescent

obsolescent

Flag: gbEnglishOxford New American Dictionary

obsolescent /ˌäbsəˈles(ə)nt, ˌɑbsəˈlɛs(ə)nt /
adjective becoming obsolete:
the custom is now obsolescent.
– ORIGIN mid 18th century : from Latin obsolescent- falling into disuse, from the verb obsolescere.