Plural Of 'Mouse' ( Computer)?

Was it too big to fit?

In a sense, yes. The project was to big to fit the competence of the company, IMNSHO. Or more exactly, it was to big to fit the pathological corporate culture of the company.

Twas the night before Christmas, and all through the hise,
Not a creature was stirring, not even the mice…

hice
 

Jane Wickenden, former Freelance at Oxford English Dictionary (1993-1995)

Oxford English Dictionary verbatim:

“Inflections: Plural octopuses, octopi, (rare) octopodes.”.

The Dictionary offers no commentary on the correctness or otherwise of these variants, only on the rarity of the third (as befits a dictionary that is descriptive and not prescriptive).

For what it’s worth, its earliest entry for octopi is dated 1834, and for octopuses, 1884.

Nice!

I only fixed one word for you. That’s a nouse.

Publication: Verrill, A. E. 1881. The Cephalopods of the northeastern coast of America. Part II. The smaller Cephalopods, including the “squids” and the octopi, with other allied forms. Transactions of the Connecticut Academy of Sciences, 5 (6). 259-446.

1901 political cartoon about Teddy Roosevelt “No lack of big game The President seems to have scared up quite a bunch of octopi.”

This must be the 1834 source mentioned by Ms. Wickenden.

Just drop the “e” and pronounce it with a soft “s”- Mous

That is true, the Oxford is descriptive, not prescriptive.

That would be Narrative of an Expedition to Explore the River Zaire – published in 1818.