Английский Этимологический словарь - spic-and-span

- 1665, from spick-and-span-new "new as a recently made spike and chip of wood," from spick "nail" (see spike) + span-new "very new," from O.N. span-nyr, from spann "chip" + nyr "new." Imitation of Du. spiksplinter nieuw "spike-splinter new."