Ergo is defined as therefore.
If you are tired, therefore you are going to sleep, this is an example of a time when you are tired, ergo you plan to sleep.
therefore; hence: often used as a conjunctive adverb
Origin of ergoClassical Latin
Origin of ergoLatin ergō ; see reg- in Indo-European roots.
- therefore (especially in syllogisms).
From Latin ergo
- Used to form terms relating to work
From Ancient Greek ἔργον (ergon).
ergo - Legal Definition