ⲁⲧ- • (at-)
In Bohairic, it becomes ⲁⲑ- • (ath-) before the consonants ⲃ, ⲗ, ⲣ, ⲙ, ⲛ, ⲟⲩ, ⲓ • (b, l, r, m, n, ou, i).
