So or thus (3)
I believe the answer is:
sic
I believe this is a double definition.
'so' is the first definition.
('sic' is 'so' in Latin)
'thus' is the second definition.
('thus' in Latin)
(Other definitions for sic that I've seen before include "Urge to attack" , "(Of quoted word) exactly so" , "Intentionally so written" , "Printing term to denote accuracy though it appears otherwise" , "It calls attention to a quoted mistake" .)