eulogize, compose, write
譔 centers on using words to honor or record: eulogizing someone in writing, composing a text, or writing something down.
譔 combines 言 (speech, words) with 巽, which likely contributes the sound and may relate to arranging or selecting words. The exact historical development is uncertain.
Words 言 on the left and 巽 on the right suggest carefully chosen speech. Picture a person arranging words to compose a eulogy or a written piece.
For セン, imagine a thousand (千, せん) words flowing from the brush as you compose a eulogy: 千 -> セン, and the words honor the departed.