E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Te Ig’itur.
One of the service-books of the Roman Catholic Church, used by bishops and other dignitaries. So called from the first words of the canon, “Te igitur, clementissime Pater.”
1
Oaths upon the Te Igitur. Oaths sworn on the Te Igitur service-book, regarded as especially solemn.
