An archaic or variant spelling of 'choosing,' meaning the act of selecting or picking one thing over another.
From Middle English chosen, from Old English ceosan, related to German kiesen. The spelling 'chosing' appears in Early Modern English texts as an alternate form before standardized spelling became fixed.
Before dictionaries standardized English spelling in the 1700s, people spelled 'choosing' about ten different ways—'chosing' was one of the common variants, showing how fluid written English used to be!
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