The whole stanza is referring to the only word the raven learned from its former "unhappy master", and that word "is its only stock and store". The former "master" spoke "dirges" (laments or mournful songs) of "hope" (read sarcasm here) often and ever increasingly of every "unmerciful Disaster" until the word nevermore became "one/melancholy burden bore" by the raven.
personification
In "The Raven," when the narrator refers to the bust of Pallas as having "a little relevancy bore," he means that the statue bears some minor connection or relevance to his current situation. The narrator sees the bust of Pallas as a reminder of wisdom and the knowledge he seeks to gain but also as a symbol of his grief and despair.
The past participle of "bore" is "borne." For example, "He has borne the burden of responsibility for years."
If someone where to say "I bear a burden" the past perfect tense of "bear" would be "I bore a burden."
The verb form of "bore" is "bear." It is used when trying to convey the idea of supporting or carrying a burden or responsibility.
Some examples of feminine rhyme in the poem "The Raven" by Edgar Allan Poe are: "dreary" and "weary" "token" and "spoken" "burden" and "word in" "betook" and "forsook"
It basically means that he has the name.
"Raven" is a black bird.
The bore is the inside of the barrel- that is, the hole that the bullet is fired through. The diameter of the bore is measuring how wide the bore is from one side to another.
Cuervo.
Raven.
possibly (no)