substyle

Etymology

sub- + style

noun

1. A secondary or subsidiary style.
   In this way, breakdancing, hardbeat, acidhouse, acidbeat, hip-hop, punk, rockabilly and streetmusic make up a plurality of substyles launched by the record companies which take over the national markets, […] 1997, Alison J. Ewbank, Fouli T. Papageorgiou, Whose Master's Voice?: The Development of Popular Music in Thirteen Cultures
2. A right line on which the style, or gnomon, of a sundial is erected, being the common section of the face of the dial and a plane perpendicular to it passing through the style.
   which is the distance of the Substyle from the Perpendicular[…] 1699, Joseph Moxon, A Tutor to Astronomy and Geography[…], page 168