To hold fort on questions that are not understood is now an occupation, a matter of pride and profit.
It was, at the same time, determined to hold fort Washington, and to defend it as long as possible.
mid-15c., "fortified place, stronghold," from Middle French fort, from noun use in Old French of fort (adj.) "strong, fortified" (10c.), from Latin fortis "strong, mighty, firm, steadfast," from Old Latin forctus, possibly from PIE root *bheregh- "high, elevated," with derivatives referring to hills and hill-forts (cf. Sanskrit brmhati "strengthens, elevates," Old High German berg "hill;" see barrow (n.2)).