Etymograph

English

keepalive

From keep + alive.

A compound of keep + alive

Proto-Indo-European *ǵab-

Proto-Germanic *kōpijaną ‘to look’

Proto-West Germanic *kōpijan

Old English cēpan ‘to seize’

Middle English kepen ‘to keep’

English keep

Proto-Germanic *lībą ‘body’

Proto-West Germanic *līb ‘body’

Old English līf ‘life’

Old English on līfe

Middle English alyve ‘alive’

English alive

Today it means

noun A short message sent by one device to another to check that the link between the two is operating, or to prevent this link from being broken due to inactivity.

Language periods are conventional ranges, not dates for this word.

Etymograph / keepalive