seems to be a legitimate spelling representing either lutta or lūna, in meaning “cut, cut off”. Thus at SN.i.5 (nalo va harito luto), SN.i.126 = Ja.vi.25; and at Snp.532 (lutāni bandhanāni; vv. ll lūtāni & lunāni; explained as “chinnāni padālitāni” at Snp-a.432).
cp. lu for lū under lunāti