there are NO words in the English language that begin with "b" and end with "ssion"
is there a chance you are misspelling your question?
Yes. Example of a word that starts with B and ends with C: bacchic. barbaric. basic.
The word bat starts with the latter b and it ends with the latter a and t
There are words that begin with letters a, c, d, e, f, i, m, n, o, p, r, s and t that end with the letters ssion. However, there are no words that begin with b and end with ssion.
Blurb
baobab.
as in y=mx+b or a word?
Bare.
Bionic
mob
lamb
entomb
Bassoon