To be added.
Latin dēsignāre ‘to mark out, trace out, plan’, from dē ‘out’ and signāre ‘to put a mark upon, mark, inscribe’, from signum ‘sign, mark, token’, from PIE base *sekw ‘to follow’ as ‘standard that one follows’, also root of sect, sequence through Latin sequī ‘to follow’, second through Latin secundus ‘to follow, coming next’, and social, society through Latin socius ‘ally, companion’, as follower’.