永訣[eiketsu] last farewell
訣別[ketsubetsu] separation
秘訣[hiketsu] secret (method, trick, etc.)

要訣[youketsu] main point
訣辞[ketsuji] words of parting
訣絶[ketsuzetsu] breaking off a relationship

御辞儀[ojigi] bow
御世辞[oseji] flattery
引責辞任[insekijinin] taking responsibility upon oneself (and resigning)
英和辞典[eiwajiten] English-Japanese dictionary
冠辞[kanji] stereotyped epithet

漢英辞典[kaneijiten] Kanji to English dictionary
疑辞[giji] questionable word
訓辞[kunji] admonitory speech (e.g. to students)
固辞[koji] decline positively