Just, deserved, or properly belonging to someone by law or moral authority.
Combines 'right' (from Old English 'riht,' meaning straight or correct) and '-ful' (full of). It evolved to mean having a just claim or being legitimately due.
Medieval kingdoms fought for centuries over 'rightful' succession claims—whole wars happened because nobles disagreed about who had the rightful throne, showing how the meaning of 'rightful' depends entirely on who's telling the story!
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