spick and span

spick and span
(also spic and span)
adjective neat, clean, and well looked after.
C16 (in the sense 'brand new'): from spick and span new, emphatic extension of dialect span new, from ON spán-nýr, from spánn 'chip' + nýr 'new'; spick influenced by Du. spiksplinternieuw, lit. 'splinter new'.

English new terms dictionary. 2014.