This is the 5953rd most frequent Japanese word.
らしき
"らしき" means "seeming" or "appearing to be."
Here, 'らしき' is used as a descriptor, suggesting appearance or suspicion of a certain identity.
彼女は探偵らしき人物を見かけた。
She saw someone who seems to be a detective.
In this sentence, 'らしき' conveys the impression or assumption of possessing characteristics of historical value.
その建物には歴史的な価値らしきものがある。
That building seems to possess something of historical value.
The phrase '真実らしき部分' (truthful parts) uses 'らしき' to express that these parts are considered to resemble or seem like truth.