Worth desiring; desirable (an archaic or rare variant spelling of 'desirable').
From Latin desiderare (to desire, to miss) plus -able. This is an older or regional variant of the modern 'desirable,' showing how English spelling evolved and standardized.
Words like 'desiderable' show how English had multiple ways to say things—both 'desiderable' and 'desirable' were used, but printing presses and dictionaries standardized us into one form, eliminating linguistic variety.
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