I don't know why that would be the case, but
intuitively I agree with you. Thanks for the editting. :)
In addition, any word -- this again applied in principleto every word in the language -- could be negatived by addingthe affix un- or could be strengthened by the affixplus-, or, for still greater emphasis,doubleplus-. Thus, for example, uncold meant'warm', while pluscold and doublepluscold meant,respectively, 'very cold' and 'superlatively cold'.