Word: paleotsunami
Part of speech: Noun
Syllables: pa
le
ot
su
na
mi
Definition: An ancient, unrecorded tsunami
Morphemes:
Affix: paleo-
Language: en
PoS: Prefix
Meaning: Old; ancient or primitive
Etymology Compounds: Affix: παλαιός
Language: grc
Decoded: palaios
Meaning: old
Affix: tsunami
Language: en
PoS: Noun
Meaning: A very large and destructive wave, generally caused by a tremendous disturbance in the ocean, such as an undersea earthquake or volcanic eruption. Tsunami are usually a series of waves, or wave train.
Etymology Compounds: Affix: 津
Language: ja
Decoded: Jin 
Meaning: harbor
Affix: 波
Language: ja
Decoded: Bo 
Meaning: wave