"Therefore . . ." - Crossword Clue, Answer and Explanation

'therefore' is the definition.
(synonyms)

This is the entire clue.

(Other definitions for hence that I've seen before include "Therefore, consequently" , "From this place or time" , "From this time, or for this reason" , "As a consequence" , "Thus" .)

I've seen this clue in the King Feature Syndicate, the Sydney Morning Herald, the USA Today, The Times, the LA Times, the Newsday, The Wall Street Journal, The Guardian, The Mirror, the Universal, The Independent, The Star Tribune, the Penny Press, The Telegraph and the Evening Standard.

'therefore' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for ergo that I've seen before include "Thus" , "Consequently" , "'Cogito, ---- sum'" , "so philosopher wrote in Latin" , "It follows" .)

I've seen this clue in the King Feature Syndicate, the Universal, The Independent, the Newsday, The Telegraph, the Sydney Morning Herald, the Newsday.com, The Guardian, The Washington Post, The Star Tribune, the Penny Press, the Evening Standard, The Times, the LA Times, The Wall Street Journal, The Sun, The New York Times, the USA Today and The Mirror.

'therefore' is the definition.
('so' can mean 'consequently' or 'therefore')

This is all the clue.

I've seen this clue in the King Feature Syndicate.

"Therefore . . ." (5)