Two words
May be 2 words combined (col+austrum) If not obvious, probably incorrect
austr.um N 2 3 ACC S M
auster, austri N (2nd) M [XXXBO]
south; south wind; southern parts (pl.);
austr.um N 2 2 NOM S N
austr.um N 2 2 VOC S N
austr.um N 2 2 ACC S N
austrum, austri N (2nd) N [XXXCO]
purple dye; purple color; material dyed purple (garment, coverlet);
*