jacobian
'J' can be used as a variable, just like x and y. Other than that, I know of no algebraic terms beginning with j.
there is : Domain , discriminant,decimles...
algebra
k is often a constant. We don't know what the constant is, but we know we could find out.
Extracts, and emulsify are cooking terms that begin with the letter E.
residential energy words from a-z example L is lights
karate
width
Density
elbowing
dockdocumentationdestination
Right angle and rectangle are geometric terms.
justify justification