The quality of being worthy of being aimed at; the state of being a suitable or valuable target or goal.
From 'aim' + 'worthy' (deserving of) + '-ness' (abstract noun suffix). This is a rare compound formation, possibly constructed from older English to describe something deserving of one's attention and effort.
This is such a rare word that it might be found mostly in old philosophical texts asking what makes a goal 'worth aiming at'—it's like the medieval version of asking 'what should I want?'
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