Know why cattywampus was trending last week?
1540s, "swelling, projecting and rounded, decorated with bosses" from boss (n.2). Meaning "domineering, fond of ordering people about" is recorded 1882, from boss (n.1) + -y (2). As a common cow name it represents Latin bos "cow" (see cow (n.)).
Domineering; autocratic: She's very bossy, a take-charge gal (1880s+)
[fr Latin bos, ''cow'']