The act of coloring or drawing with crayons; present participle of the verb 'crayon.'
From 'crayon' with the gerund suffix '-ing,' following standard English verb conjugation.
Even though crayons have been around since the 1900s, 'crayoning' as a gerund is still preferred over 'crayon-ing'—English speakers naturally drop the 'e' before '-ing' to avoid awkward double vowels.
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