1)
What are "Zenim"?
1.
'Rashi': They are a blend of fragrances.
2.
Radak: They are species. The Targum of "l'Minehu" (Vayikra 11:16) is li'Znohi.
2)
What did they burn for him?
1.
'Rashi' #1, Radak #1: They burned the fragrances until they were ashes, and strewed them on him.
2.
'Rashi' #2, Radak #2: This is like we burn for kings [after they die. We burn his bed (Radak ? linen) and the Kelim he used. ? Avodah Zarah 11a]
