Semantic change

·         Lean: thin, emaciated - amelioration

·         Novice: a member of a religious order who hasn’t taken  vows yet – broadened

·         Revolutionary: someone who favours overthrowing the government – broadened

·         Lewd: not having an official position in the church – broadened/pejoration

More ways in which language undergoes semantic change:

·         Coinage - the invention of new words

·         Obsolete - when a word has died out
·         Archaic - old-fashioned/outdated - hardly used
·         Blending - new words from parts of other ones