[ˈmarəʊ], (Noun)

Definitions:
- a long white-fleshed gourd with green skin, which is eaten as a vegetable

- the plant of the gourd family which produces marrows

- a soft fatty substance in the cavities of bones, in which blood cells are produced
(e.g: marrow donors)

- the essential part of something
(e.g: such men were the marrow of the organization)


Phrases:
- to the marrow

Origin:
Old English mearg, mærg (in marrow), of Germanic origin; related to Dutch merg and German Mark. marrow dates from the early 19th century

[ˈmarəʊ], (Noun)

Definitions:
- a friend, companion, or workmate (often used as a form of address)
(e.g: come here, marrer, we need to talk)

- something that forms a pair with something else; a counterpart or twin


Phrases:

Origin:
late Middle English: probably from Old Norse margr ‘many’, also ‘friendly, communicative’