means The state of desiring something you don't yet have — or, in another sense, the condition of lacking or being deficient in something.

from From the Old Norse 'vanta,' meaning to lack or be missing, which slipped into Middle English as 'wanten.' The original flavor was about absence, not appetite — to 'want' something was simply to be without it, the way a meal might be 'wanting salt.' Only later did English warm the word up, turning the cold fact of lack into the hot ache of desire. The two meanings still live side by side: to want is both to miss and to crave, and 'found wanting' preserves the older, chillier sense.