Etymology
Advertisement
kern (n.)

1680s, "part of a metal type projecting beyond the body," as the head of an -f- or the tail of a -j-. According to Century Dictionary this is identical with kern "a grain" (see kernel), but OED says it is from French carne "projecting angle, quill of a pen" (12c.), Old North French form of Old French charne "hinge, pivot," from Latin cardinem "hinge." Related: Kerned "having the top or bottom projecting beyond the body;" kerning.

Related entries & more 
Advertisement
churn (n.)

"vessel in which cream or milk is agitated to separate it and make butter," Old English cyrin, from Proto-Germanic *kernjon (source also of Old Norse kirna, Swedish kärna, Danish kjerne, Dutch karn, Middle High German kern); probably akin to cyrnel "kernel" (see kernel) and describing the "grainy" appearance of churned cream.

Related entries & more