Where does “bombrief” come from?

bombrief (Dutch) comes from Dutch brief, from Middle Dutch brief, from Latin brevis, from Proto-Italic *breɣʷis, from Proto-Indo-European mréǵʰus, from Proto-Indo-European mreǵʰ- — short.

bombrief (Dutch): bomb letter

Definitions

bomb letter

Ancestry of “bombrief”, step by step

bombrief traces back through two separate lines of ancestry.

via Dutch brief

Step	Language	Word	Meaning
1	Dutch	brief	letter
2	Middle Dutch	brief	—
3	Latin	brevis	short, small, little, narrow; brief, short;...
4	Proto-Italic	*breɣʷis	—
5	Proto-Indo-European	mréǵʰus	short; brief
6	Proto-Indo-European	mreǵʰ-	short

via Dutch bom

Step	Language	Word	Meaning
1	Dutch	bom	bomb; gas cylinder; flat-bottomed marine fishing...
2	French	bombé	rounded, convex; past participle of bomber
3	Italian	bomba	bomb
4	Italian	bombo	bumblebee; buzzing
5	Latin	bombus	A buzz or humming sound
6	Ancient Greek	βόμβος	any deep, hollow sound, humming, buzzing,...

Every word from Proto-Indo-European mreǵʰ- →Every word from Proto-Indo-European mréǵʰus →Every word from Proto-Italic *breɣʷis →