| Language | Reflex(es) | Gloss | Grammar | Sources |
|---|
| English |
| English | Butterbur(r) | Bree surname in Tolkien: The Lord of the Rings | prop.n | LRC |
| English | beef | flesh of adult domestic bovine | n | AHD W7 LRC |
| English | Bootes | northern circumpolar constellation | prop.n | LRC |
| English | bovine | (re:) ox/cow | adj | AHD W7 LRC |
| English | buccinator | muscle forming cheek wall | n | AHD LRC |
| English | buffalo | oxlike Old World mammal | n | AHD LRC |
| English | bugle | brass instrument with cupped mouthpiece (like trumpet) | n | AHD W7 LRC |
| English | bulimia | insatiable appetite | n | AHD LRC |
| English | bumelia | tree/shrub with very hard wood | n | AHD LRC |
| English | buprestid | destructive wood-boring beetle | n | AHD LRC |
| English | butter | solid food emulsion made by churning milk/cream | n | AHD W7 LRC |
| English | butyric | re: a certain isomeric fatty acid | adj | AHD W7 LRC |
| English | cow | mature female of cattle | n | AHD W7 LRC |
| English | gaur | (East Indian) wild ox | n | AHD W7 LRC |
| English | gayal | domesticated bovine mammal | n | AHD LRC |
| English | gunny | coarse jute sacking | n | AHD W7 LRC |
| English | kine | cows, cattle | n.pl | AHD LRC |
| English | nilgai | large long-legged Indian antelope | n | AHD LRC |
| English | proboscis | trunk (e.g. of elephant) | n | AHD W7 LRC |
| Old English | butere | butter, cheese | n.fem | ASD LRC |
| Old English | cū, cȳ(e) | cow | n.fem | RPN AHD ASD LRC |
| Middle English | beef | beef | n | W7 LRC |
| Middle English | bugle | bugle | n | W7 LRC |
| Middle English | butter | butter | n | W7 LRC |
| Middle English | cou, kyn | cow(s) | n | W7 AHD LRC |
| Celtic |
| Old Irish | bó | cow | n | RPN LRC |
| West Germanic |
| Old Frisian | botera, butera | butter | n | ASD LRC |
| Old Frisian | kū | cow | n.fem | RPN ASD LRC |
| Frisian | buter | butter | n | ASD LRC |
| Frisian | kw, ky | cow(s) | n.fem | ASD LRC |
| Dutch | bōter | butter | n.fem | ASD LRC |
| Dutch | koe | cow | n.fem | ASD LRC |
| Old Saxon | kō | cow | n.fem | RPN ASD LRC |
| Old High German | butera, butere | butter | n.fem | W7 ASD LRC |
| Old High German | kuo, chuo, kua, kō | cow | n.fem | W7 ASD LRC |
| Middle High German | buter | butter | n | ASD LRC |
| Middle High German | kuo | cow | n.fem | ASD LRC |
| German | Butter | butter | n.fem | ASD LRC |
| German | Kuh | cow | n.fem | ASD LRC |
| North Germanic |
| Old Norse | kýr | cow | n.fem | LRC |
| Icelandic | kȳr | cow | n.fem | ASD LRC |
| Danish | ko(e) | cow | n | ASD LRC |
| Swedish | ko | cow | n.fem | ASD LRC |
| Italic |
| Latin | bōs, bovis | bull, bovine | n.masc | RPN LRC |
| Latin | bucca | cheek | n.fem | ELD LRC |
| Latin | būcina | horn, trumpet | n.fem | AHD LRC |
| Latin | būcinātor | trumpeter | n.masc | ELD LRC |
| Latin | būcula | heifer, young cow | n.fem.dim | ELD LRC |
| Latin | buculus | little ox | n.masc | W7 LRC |
| Latin | butyrum | butter | n.neut | W7 LRC |
| Latin | proboscis | a growth | n.fem | W7 LRC |
| Late Latin | bōs, bovis | bull, bovine | n.masc | W7 LRC |
| Late Latin | bovinus | bovine | adj | W7 LRC |
| Portuguese | boi | bovine: ox | n | TLL LRC |
| Spanish | buey | bovine: ox | n.masc | TLL LRC |
| Old French | buef | beef; bovine: ox | n.masc | W7 LRC |
| Old French | bugle | ox, bugle | n.masc | W7 LRC |
| French | beurre | butter | n.masc | ASD LRC |
| French | bœuf | beef; bovine: ox | n.masc | TLL LRC |
| French | butyrique | re: butter | adj | W7 LRC |
| Italian | bove | bovine: ox | n | TLL LRC |
| Italian | bue | bovine: ox | n.masc | LRC |
| Italian | bu(ti)rro | butter | n.masc | ASD LRC |
| Balto-Slavic |
| Lithuanian | gauja | herd, band | n.fem | W7 LRC |
| Latvian | gotiņa | little cow | n.fem | LRC |
| Latvian | gùovs | cow | n | RPN LRC |
| Hellenic |
| Greek | βόσκω | to feed, tend (cattle) | vb | LS LRC |
| Greek | βοῦς | ox, bull, cow | n.masc | LRC |
| Greek | βούτης | herdsman, plowman | n.masc | LS LRC |
| Greek | βού-τῡρον | butter | n.neut | LS LRC |
| Greek | πουλυβότειρα | fruitful, all-nourishing | adj | LRC |
| Greek | προβοσκίς | means of providing food | n.fem | LS LRC |
| Armenian |
| Armenian | kov | cow | n | RPN LRC |
| Indo-Iranian |
| Avestan | gāuš | ox, bull, cow | n | RPN LRC |
| Sanskrit | gáuḥ, gouḥ | ox, bull, cow | n | RPN LRC |
| Sanskrit | gaura | gaur, bull | n | W7 LRC |
| Bengali | gayāl | gayal | n | AHD LRC |
| Hindi | ganī | coarse jute sacking | n | W7 LRC |
| Hindi | gaur | gaur | n | W7 LRC |
| Tocharian |
| Tocharian B | keu | cow | n | RPN LRC |
| Tocharian A | ko | cow | n | RPN LRC |