scald vs assail

scald is a noun but assail is not a noun.

Word	Noun	Adjective	Verb	Adverb
scald	Yes	No	Yes	No
assail	No	No	Yes	No

As verbs, assail is a hypernym of scald; that is, assail is a word with a broader meaning than scald:

Other hypernyms of scald include assault, attack, lash out, round, snipe.

scald (noun)	assail (noun)
the act of burning with steam or hot water
a burn cause by hot liquid or steam

scald (verb)	assail (verb)
burn with a hot liquid or steam	attack in speech or writing
heat to the boiling point	attack someone physically or emotionally
treat with boiling water	launch an attack or assault on; begin hostilities or start warfare with
subject to harsh criticism