What's the noun for honourableness? Here's the word you're looking for.
honor
(uncountable) Recognition of importance or value; respect; veneration (of someone, usually for being morally upright and/or competent).
(uncountable) The state of being morally upright, honest, noble, virtuous, and magnanimous; excellence of character; the perception of such a state; favourable reputation; dignity.
(countable) A token of praise or respect; something that represents praiseworthiness or respect, such as a prize or award given by the state to a citizen.
“He brought that honourability with him into the classroom, and at the end of the day it was his young pupils who were the real beneficiaries of it.”
“But as her closer association with Mr. Darcy had worn down her earlier prejudices, she had come to put a great deal of faith in his essential honourability.”
honorarium
Compensation for services that do not have a predetermined value.
“First, the honourableness with which the minister is facing the issue should be an object lesson to public men everywhere.”
“It appeared that Rosebery was showing his true colours and he was accused of behaving like a spoilt child, with doubts cast over the honourableness of his reasons for refusing the Under Secretaryship of the India Office.”
“Fortis Bank will make reasonable endeavours to check and update the information and materials contained in this Website and to assess the reliability and honourableness of their sources.”
“He should really stop talking about the honorableness of public officials resigning when they have differences with their bosses.”
“His fundamental kindness and honorableness have always impressed me.”
“She must have found there an unquestionable assurance of the honorableness of their owner, for she permitted him to lay his palm upon her forehead and feel her pulse.”
“Japanese honorifics probably won't be used much when discussing particle physics or nanotechnology.”
“Finally, I have to regret the use of first names and nicknames for women, while men are given surnames, honorifics and initials.”
“Nahuatl once had an extensive system of honorifics, which affected not only the choice of pronouns, but also the forms of verbs, nouns, and pronouns.”