paletiology vs palaetiology

paletiology and palaetiology both are nouns.

Word	Noun	Adjective	Verb	Adverb
paletiology	Yes	No	No	No
palaetiology	Yes	No	No	No

As nouns, paletiology and palaetiology are synonyms defined as:

paletiology and palaetiology: the explanation of past events in terms of scientific causes (as geological causes)

paletiology (noun)	palaetiology (noun)
the explanation of past events in terms of scientific causes (as geological causes)	the explanation of past events in terms of scientific causes (as geological causes)