IPA: /ˈθrɛnədɪst/
KK: /θrɛnəˌdɪst/
A person who composes or recites a lament or mournful poem, often expressing sorrow for someone who has died.
The threnodist delivered a heartfelt tribute at the memorial service.
Threnodist is formed from "threnos" (meaning a song of lamentation or mourning) and the suffix "-ist" (meaning one who practices or is concerned with). A threnodist is someone who composes or performs songs of mourning or lamentation.
Think of a 'threnos' as a song of sorrow, and remember that a threnodist is someone who creates or performs such songs.
No commonly confused words.