horrify
appal
You are probably looking for the word "appal."
Some forms for the noun horror are:horrible (adjective)horrific (adjective)horrify (verb)horrified (verb, adjective)horrifying (verb, adjective, gerund)
No, the word 'appall' is a verb (appall, appalls, appalling, appalled): to greatly dismay or horrify.
of Horrify
horrified
Fugitive has no root word it is the root word.
There is no root word of river. It itself is a root word.
the root word is'confirminglyishness'
yes
A verb for "horror" is "horrify". It is not entirely clear from the question whether "large" is to be considered as a separate word or as an adverb to the verb for horror. In the first instance, something like "greatly horrify" would be appropriate. It is less clear whether "large" by itself has any verbal equivalent: Either "enlarge" or "magnify" might be considered appropriate.
Root word is usual.