Dinomist

"Dinomist", known as "Dynamist" (ダイナミスト Dainamisuto) in the OCG, is an archetype of WATER Attribute Machine-Type Pendulum Monsters, debuting in Breakers of Shadow.

Etymology
Their English name appears to be a portmanteau of "dinosaur" and "mist", referring to their dinosaur-like appearance.

Their Japanese name contains the compound "dyna-", or could be a portmanteau of the words "dynamo" and "mist". It can also be a pun on "dynamis" ("δύναμις", also transliterated as "dunamis"), the Greek word for "power" or "strength".