It's archaic - it's a contraction of the words 'can', & 'not'.
The correct spelling is archaic (old, outdated).
The correct spelling is "infinity" (a nonexistent highest possible number, ∞).
An abbeystede is the archaic spelling of abbeystead, the seat of an abbey.
The correct modern spelling is swear (give an oath, or to curse).The spelling sware is an archaic form.
That is the correct spelling of "brethren" (an archaic term meaning "brothers").
The correct spelling is completed (finished, done).
The correct spelling of the preposition is amongst, a mostly archaic variation of among.
That is the correct spelling of the word "huntsman" (a mostly archaic term for "hunter").
The UK spelling is "summer fayre" (a local or regional festival).(The actual Middle English spelling was faire so the spelling is pseudo-archaic.)
The past tense misspelt is the archaic, now mainly UK spelling of misspelled.
The usual spelling uses the archaic ae as archaeologist.However, there has been limited use of the variant archeologist.
No, widdow is an archaic spelling of widow. A widow is a woman whose husband has died.