In Norse mythology, Eldir (Old Norse "fire-stoker") is a servant of Ægir. At the beginning of Lokasenna, Loki kills another servant, Fimafeng, and is driven from Ægir's hall into the forest by the gods who were assembled at the feasting table. Upon his return, Loki confronts Eldir outside and exchanges hostile words with the servant before again entering the hall to "mix their mead with venom".
In the Lokasenna
Eldir only appears in the Lokasenna;
"Speak now, Eldir,
for not one step
farther shalt thou fare;
what ale-talk here
do they have within,
the sons of the glorious gods?"
"Of their weapons they talk,
and their might in war,
the sons of the glorious gods;
from the gods and elves
who are gathered here
no friend in words shalt thou find."
"In shall I gointo Ægir's hall,
For the feast I fain would see;
bale and hatred I bring to the gods,
And their mead with venom I mix."
"If in thou goest to Ægir's hall,
and fain the feast wouldst see,
and with slander and spite
wouldst sprinkle the gods,
think well lest they wipe it on thee."
"Bethink thee, Eldir, if thou and I
shall strive with spiteful speech;
richer I grow, in ready words
if thou speakest too much to me."