| Language | Reflex(es) | Gloss | Grammar | Sources |
|---|
| Hellenic |
| Greek | βόμβος | dull sound | TBD | IEW UKY GPT |
| Greek | βόμβῡξ, -ῡκος | fleas | TBD | IEW UKY GPT |
| Greek | βομβύκια | buzzing insects | TBD | IEW UKY GPT |
| Greek | βομβύλη | narrow-necked vessel (as 'gurgling') | TBD | IEW UKY GPT |
| Greek | βομβυλιός oder -ύλιος | bumblebee (and 'narrow-necked vessel') | TBD | IEW UKY GPT |
| Greek | βαμβαίνω | clatter with teeth; stammer, lisp | TBD | IEW UKY GPT |
| Paleo-Balkan |
| Albanian | bumbulit | it thunders | TBD | IEW UKY GPT |
| North Germanic |
| Old Icelandic | bumba | drum | TBD | IEW UKY GPT |
| Danish | bomme | drum | TBD | IEW UKY GPT |
| Danish | bambe | drum | TBD | IEW UKY GPT |
| West Germanic |
| Dutch | bommen | to drone, to rumble | TBD | IEW UKY GPT |
| New High German | bum bum | (type of noise) | TBD | IEW UKY GPT |
| New High German | bammeln | to ring, to sound | TBD | IEW UKY GPT |
| New High German | bimmeln | to ring, to sound | TBD | IEW UKY GPT |
| Balto-Slavic |
| Lithuanian | bambė́ti | to hum, to buzz | TBD | IEW UKY GPT |
| Lithuanian | bim̃pti | to hum, to buzz | TBD | IEW UKY GPT |
| Lithuanian | bim̃balas | horsefly | TBD | IEW UKY GPT |
| Lithuanian | bim̃bilas | horsefly | TBD | IEW UKY GPT |
| Russian Church Slavic | búbenъ | drum | TBD | IEW UKY GPT |
| Russian Church Slavic | bubonъ | drum | TBD | IEW UKY GPT |
| Russian | bubnítь | to chat, to prattle | TBD | IEW UKY GPT |
| Polish | bęben | drum | TBD | IEW UKY GPT |