Rashi on Numbers 31:49/רש"י על במדבר ל״א:מ״ט

1ולא נפקד means THERE IS NOT LACKING. Its translation in the Targum is לא שגא which, too, in the Aramaic language means “lacking”, just as the words (Genesis 31:39) אנכי אחטנה “I will make good the shortage”, are translated in the Targum by דהות שגיא ממנינא that which was lacking of the number (cf. Rashi on that verse), and so, too, is (I Samuel 20:18) “For thy seat יִפָּקֵד”, i.e., the place where you sat will lack the man who usually sat there. And similar is (I Samuel 20:15) “וַיִפָּקֵד the place of David” — his place lacked, and no man sat there.