Food term used as an abbreviation of ビフテキ, referring to beefsteak. It is not the usual modern everyday word for steak.
See also: ビフテキ
My father grilled a steak for us in the yard.
If an old menu says “teki,” it often means beefsteak.
“Teki” is sometimes used as an abbreviation of “bifuteki.”
pork steak with tangy sauce
It is an abbreviation and cross-references ビフテキ. The form テキ is a clipping of ビフテキ; any deeper borrowing history is not specified.