dłutko; caelum, quo lapides
excavantur
RachWaw p. 120 (a. 1529) : pro 63 f-is ad cavandum lapides in officina Italorum ... grossos 31.
Paulo infra quodlibet f-um alias «dlotkko» per grossos 1/2.
Ib. p. 174 (a. 1531) : pro ... f-is, quibus Itali cavant lapides.