ab origine

[ahb oh-rig-i-ne; English ab aw-rij-uh-nee, -oh-rij-] /ɑb oʊˈrɪg ɪˌnɛ; English æb ɔˈrɪdʒ əˌni, -oʊˈrɪdʒ-/
adverb
1.
Latin. from the very beginning; from the source or origin.