Denshi Jisho — Online Japanese dictionary

況して まして 1: (Usually written using kana alone) still more; to say nothing of; not to mention;
2: (Usually written using kana alone) still less (with neg. verb)
Common word, Expression, Adverb 
况や いわんや much more; not to mention; not to speak of; to say nothing of; let alone
Expression 
況や いわんや much more; not to mention; not to speak of; to say nothing of; let alone
Expression 
況んや いわんや much more; not to mention; not to speak of; to say nothing of; let alone
Expression 
言わんや いわんや much more; not to mention; not to speak of; to say nothing of; let alone
Expression 
況してや ましてや much less; to say nothing of
Expression, Adverb, Usually written using kana alone 

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