Final answer:
The noun form related to 'heinous' is 'heinousness.' It signifies something extremely wicked or odious, often associated with crimes.
Step-by-step explanation:
The noun form related to the adjective 'heinous' is 'heinousness'. The usage of the term 'heinous' refers to something that is utterly odious or wicked, typically used in the context of crimes or moral offenses. Drawing from the provided reference, which describes a custom that is loathsome and dangerous, this adjective and its related noun effectively convey the extreme negativity of the subject being discussed.
In English, the term 'heinous' is an adjective used to describe something extremely wicked, evil, or abominable. It can be related to various literary works, such as novels or poetry, where a writer may use this word to describe a character's actions or a situation. For example, the custom described in the quote you provided portrays a heinous act or event.