Greek).
Б (B) derived from Greek B, and with the same sound as in Ancient Greek, i.e. ‘b’.
С (S) derived from the Greek Σ (s), though the right-indentation was transmogrified into a crescent or ‘lunate sigma’.
Д (D) derived from Greek Δ, with two little feet added; in some fonts, the Д has a sharp top, as in Greek.
Ё (YO) same origin as Е, with dots added (though often omitted).
Э (E) same origin as E. In older Cyrillic, it used to be Є.
Н (N) derived not from Greek Η, but Ν.
Л (L) derived from Greek Λ. Like Д, it sometimes occurs in a pointy shape more similar to the classical form.
И (I) derived from Greek H, which in classical times sounded like the ‘e’ in bed, but later changed to the the ‘i’ as in machine.
Й (Y) same origin as И ; this stands for our Y as a consonant (as in boy), rather than as a vowel (as in myth).