"Covariant" is a word in ENGLISH

covariant ENGLISH
Definition:

A function involving the coefficients and the variables
of a quantic, and such that when the quantic is lineally transformed
the same function of the new variables and coefficients shall be equal
to the old function multiplied by a factor. An invariant is a like
function involving only the coefficients of the quantic.

Few words of positivity

I can speak of our baby like this to no one else. Who but his father would linger over the exact width of his gummy little smile or the blueness of his eyes, or the sweetness of his little lick of tawny hair on his forehead?

Philippa Gregory

WORD SUGGESTIONS
Laugh your heart out.

Why do hamburgers feel sad at barbecues?They get to meet their old flames!

integration ENGLISH

The operation of finding the primitive function which has a given function for its differential coefficient. See Integral.

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invariant ENGLISH

An invariable quantity; specifically, a function of the coefficients of one or more forms, which remains unaltered, when these undergo …

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potential ENGLISH

In the theory of gravitation, or of other forces acting in space, a function of the rectangular coordinates which determine …

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