ETYMOLOGY
– from ob and sol (scholastic disputation, subtle debate – shortened from objection) + -er
EXAMPLE
“…Where Hinderson, and th’ other Masses,
Were sent to cap Texts, and put Cases:
To pass for Deep and Learned Scholars;
Although but Paltry, Ob-and-Sollers:
As if th’ unseasonable Fools
Had been a Cursing in the Schools…”
From: Hudibras. The third and last part,
By Samuel Butler, 1678
Lexicophilia 