you’re right about beef coming from bœuf, that’s because the norman conquest of britain in 1066 changed / added a lot of the vocabulary, for example lots of the words for meat are derived from old french (beef – bœuf, poultry – poule), and the words for the animal have germanic roots (cow – coo, no idea about chicken tbh), since the economic divide between farmers and aristocrats was also a linguistic divide

Absolutely. Also, it probably is in your best interest to advertise details of your cryptography. What data is shared with whom, what algorithms are used, etc.; if you’re doing something more exotic / low-level, Alice-Bob diagrams can be helpful. I’m not sure what other people do but when looking at security-sensitive software, the first thing I do is look for the cryptographic setup and research it.