The Collaborative International Dictionary
Obfirm
Obfirm \Ob*firm"\, Obfirmate \Ob*firm"ate\, v. t. [L.
obfirmatus, p. p. of obfirmare to make steadfast. See Ob-,
and Firm, v. t.]
To make firm; to harden in resolution. [Obs.]
--Bp. Hall.
--Sheldon.
Wiktionary
obfirm
vb. (context transitive obsolete English) To make firm; to harden in resolution.