Obs. [Corruption of LOGARITHM, after sbs. in -ISM.] = LOGARITHM (in the earlier quots. used blunderingly).
1630. Brathwait, Eng. Gentlem. (1641), Ep. Ded. If any one be minded to learn the … art of Brachygraphie, Stenographie, Logarisme or any Art whatsoever.
1649. G. Daniel, Trinarch., Hen. IV., xix. Diuision (whose Arethmeticke Makes but a Logarisme to perplex The world).
1684. Cocker, in Lond. Gaz., No. 1985/4. His Artificial Arithmetick, shewing the Genesis and Fabrick or Logarisms.
