ergo

conjunction, adverb

1. therefore.

1. a combining form meaning “work”: ergograph.

1. a combining form of ergot: ergotoxine.

Latin.

1. after this, therefore because of it: a formula designating an error in logic that accepts as a cause something that merely occurred earlier in time.

Latin.

1. I think, therefore I am (stated by Descartes as the first principle in resolving universal doubt).

sentence connector

1. therefore; hence

noun

1. informal short for ergometer (def. 2)

1. I think, therefore I am; the basis of Descartes’ philosophy

c.1400, from Latin ergo “therefore, in consequence of,” possibly from *ex rogo “from the direction,” from ex “out of” (see ex-) + root of regere “to guide” (see regal).

pref.

1. Work:ergometer.

Latin word meaning “therefore”; usually used to show a logical conclusion: “Birds are warm-blooded animals, and reptiles are cold-blooded animals; ergo, no bird is a reptile.”