condolence message
誄 centers on a formal message of condolence, expressing sympathy for someone's death.
誄 combines 言 (word, speech) with 耒, which likely contributes a phonetic element. The character is associated with formal speech acts related to mourning.
Words 言 beside a plow-like shape 耒: imagine a solemn speech given at a funeral, as heavy and final as the earth turned by a plow.
For ルイ, picture a condolence message written on a Louis Vuitton card: Louis -> ルイ, and the card expresses sympathy.