mercifully ate the butter —

 that he stole the butter and mercifully ate it —

butter that was churned —

while stealing of butter —

 freshly churned butter —

 curd and butter —

curd and butter —

when the news about butter theft came about —

 butter —

 mercifully consuming the butter —

when swallowing butter —

eating butter, which does not satiate him (however much he eats) —

butter —

of ¬†butter —

for butter —

butter [kept in a pot inside that hoop like structure] —

similar butter —

butter —