пъпля

Etymology
Per BER, an archaic duplicated iterative from 🇨🇬.

Verb

 * 1)  to creep, to slither, to slug (for arthropod or another small creature)
 * 2)  to proceed, to propagate, to spread slowly or in small steps
 * 3)  to simmer, to burble, to brew on slow fire (for food preparation)