Namely (2,3)
'namely' is the definition.
(I know that namely can be written as viz.)
This is all the clue.
(Other definitions for viz that I've seen before include "Namely; magazine" , "Namely (abbrev.)" , "'That is, namely (3)'" .)
'namely' is the definition.
('i.e.' or 'id est' means 'that is' or 'namely')
This is the entire clue.
(Other definitions for id est that I've seen before include "That is to say (Latin)" , "ie (L)" , "Namely" , "I mean to say!" , "that is in Rome" .)
'namely' is the definition.
('to wit' can mean namely)
This is the entire clue.
(Other definitions for to wit that I've seen before include "In other words" , "i.e." , "That is to say" , "what to do with a broken-down car!" , "Namely" .)