What is the meaning of Kell?

The caul.

That which covers or envelops, like a caul; a net; a fold; a film.

The cocoon or chrysalis of an insect.

A kiln.

1557 February 13 (Gregorian calendar), Thomas Tusser, A Hundreth Good Pointes of Husbandrie, London: [] Richard Tottel, →OCLC:
Kell-drying

Alternative spelling of kale (broth)

testicle

cell :

testicle

cell

clock

bell

balls, testicles

must, need to, have to

to be needed

to belong to; expresses English have

to be obligatory for; to be necessary for; expresses English have to, must

third-person singular present indicative of kala

Source: wiktionary.org