According to Jeff Miller's Earliest Known Uses of Some of the Words of Mathematics, the term kernel was first used in this meaning by Pontryagin (in translation by Lehmer) in the slightly broader context of group homomorphisms. It doesn't say why Pontryagin or Lehmer chose that particular word though.
matrices - Word origin / meaning of 'kernel' in linear algebra ...
78 A semicolon is used to separate variables from parameters. Quite often, the terms variables and parameters are used interchangeably, but with a semicolon the meaning is that we are defining a function of the parameters that returns a function of the variables.
Chôlito bhasha (চলিত ভাষা "running language"), known by linguists as Standard Colloquial Bengali, is a written Bengali style exhibiting a preponderance of colloquial idiom and shortened verb forms and is the standard for written Bengali now.
Bengali people are the majority population of Bengal, the region of northeastern South Asia that generally corresponds to the country of Bangladesh and the Indian state of West Bengal. The Bengalis speak dialects of Bangla, as they call the Bengali language.
Bengali exhibits diglossia between the written and spoken forms of the language; two styles of writing, involving somewhat different vocabularies and syntax, have emerged. The Bengali writing system is the Bengali abugida, a cursive script which is a variant of the Eastern Nagari script.
Bengali (বাংলা) Bengali is an eastern Indo-Aryan language spoken mainly in Bangladesh and northern Indian. There are about 250 million native speakers of Bengali, and another 41 million people speak it as a second language.
The Mango Languages app has a fantastic introductory course on Bengali, and Mondly also has a Bengali course. Part of the Linguaboost Bengali course can also be found for free as a podcast.