So nullius in verba has bizarre grammar because it is an ungrammatical selection of a few words from a longer original Latin sentence with correct grammar. Nullius addictus iurare in verba magistri means "To swear [oneself] slave of no master", where in verba attaches grammatically to the verb, iurare, not to the master.
This interpretation isn't possible in the clipping because the only attachment point for nullius is verba. But in the original poetry, nullius is bound to magistri, which is then bound to addictus, not to verba.
https://sci-hub.se/https://www.cambridge.org/core/journals/b...
So nullius in verba has bizarre grammar because it is an ungrammatical selection of a few words from a longer original Latin sentence with correct grammar. Nullius addictus iurare in verba magistri means "To swear [oneself] slave of no master", where in verba attaches grammatically to the verb, iurare, not to the master.
This interpretation isn't possible in the clipping because the only attachment point for nullius is verba. But in the original poetry, nullius is bound to magistri, which is then bound to addictus, not to verba.