expression, noun
A formal speech or written tribute honoring a deceased person, typically delivered at a funeral or memorial service.
葬儀で友人が心のこもった追悼の辞を述べた。
At the funeral, a friend delivered a heartfelt eulogy.
追悼文 refers specifically to a written memorial tribute, whereas 追悼の辞 can be either spoken or written.
Compound of 追悼 (tsuitō, 'mourning, memorial') + の (possessive particle) + 辞 (ji, 'words, speech'). The phrase follows a standard Sino-Japanese pattern for formal expressions.