哀れ[aware] pity
哀れっぽい[awareppoi] plaintive
哀れみ[awaremi] pity
哀れむ[awaremu] to commiserate
哀れ気[awarege] sad

哀音[aion] sad voices
哀歌[aika] lament (song)
哀楽[airaku] grief and pleasure
哀感[aikan] pathos
哀歓[aikan] joys and sorrows

厭世悲観者[enseihikansha] pessimist
慈悲[jihi] compassion (e.g. of Buddha)
慈悲心[jihishin] benevolence
嘆き悲しむ[nagekikanashimu] to grieve and moan
悲しい[kanashii] sad

悲しむ[kanashimu] to be sad
悲哀[hiai] sorrow
悲運[hiun] sad fate
悲歌慷慨[hikakougai] indignant lamentation over the evils of the times
悲観[hikan] pessimism