Statement from the writer
A fan theory1 claims that the amniomorphic spell creates pots, based on the alternate etymology below. Since Starswirl has a beard, he is “hairy,” and since he invented a spell for making pots, he is a potter: a hairy potter. This would make the spell a Harry Potter joke.
From this interview2 with M. A. Larson, the writer of that episode, he denies that the name of the spell was intended to be a Harry Potter joke, although he likes the idea. He didn’t state any source for the origin of the word.
If we accept his joking agreement as a retcon, then the amniomorphic spell creates pots.
Without a definitive statement from the author, we can look at the etymology of amniomorphic.
All English words that start with amnio- relate to the amnion, a membrane surrounding an embryo.
Definition of -morphic from the Oxford English Dictionary:
-morphic: Forming adjectives with the sense ‘having a form or character denoted or described by the first element of the compound’.
A straightforward reading of the word would be, “having the form or character of an amnion.”
Someone named Jex3 decided to dig deeper into the prefix amnio-, trying to find other possible meanings.
Etymology of amnion from the Oxford English Dictionary:
amnion: Greek ἀμνίον the caul, diminutive of ἀμνός lamb.
Etymology from the Online Etymology Dictionary4:
amnion: Modern Latin, from Greek amnion “membrane around a fetus,” said to be originally “bowl in which the blood of victims was caught” [Liddell & Scott], which is variously said to be of unknown origin, from ame “bucket,” or a diminutive of amnos “lamb.”
From the etymology, the word presumably means something like, “related to the form or character of an amnion, a lamb, or some type of bowl or bucket.” An anmiomorphic spell could do anything from turning something into a bucket to making someone sheepish (the character of a lamb). In any case, it wasn’t an intentional reference to Harry Potter. It’s entirely possible that the writer just made the word up, without considering its etymology or deciding what the spell was meant to do.
Claim about being a Harry Potter joke is here
. Link provided by Jonah
Link provided by Richard
Link provided by Jonah
Link provided by Jex