The word traumatize is a regular verb. The past tense is traumatized.
Yes dogs can be all traumatized.
Just delete the word "become." Example: She became traumatized by the accident --> The accident traumatized her.
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.
The part of speech for "rapid" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "breezy" is an adjective.