elegy
Meaning: a mournful poem or song, often for the dead
Usage: The poet wrote an elegy after his friend died.
knell
Meaning: the solemn sound of a bell, often indicating a death
Usage: Echoing throughout our village, the funeral knell made the stormy day even more grim.
poignant
Meaning: deeply affecting, moving
Usage: My teacher actually cried after reading to us the poignant final chapter of the novel.
wistful
Meaning: full of yearning; musingly sad
Usage: Since her pet rabbit died, Edda missed it terribly and sat around wistful all day long.