New SI Unit Prefixes/Words

[Tex2002ans]

See Wikipedia.org: "Metric prefix" > List of SI Prefixes.

In November 2022, these 4 prefixes were just added:

• quetta-
• ronna-
• ronto-
• quecto-

In 1991, these 4 were added:

• yotta-

• zetta-

• zepto-

• yocto-

• • -

SI Prefix + SI Unit = Valid New Words

Perhaps this list of SI prefixes can be auto-combined with...

1) SI Base Units

• second
• meter
  • metre = British
• gram
• ampere
• kelvin
• mole
• candela

2) SI Derived Units

• hertz
• newton
• joule
• watt
• volt
• farad
• ohm
• tesla
• henry
• lumen
• lux

3) Common Units

• liter
  • litre = British

and potentially:

• bit
• byte

4) Add an -s on the end.

For example:

• ronnagram

• ronnagrams

• ronnajoule

• ronnajoules

• quettavolt

• quettavolts

• • -

Note: Invalid Combinations?

Some of these combos may not make sense for units <1...

Like a:

• picobit (1 trillionth of a bit)
• nanobit (1 billionth of a bit)

makes no sense, but a:

• gigabit (1 billion bits)
• terabit (1 trillion bits)

does!

Related: #360 just asked about adding SI prefixes to an .aff file, but I'm unsure. These prefixes aren't used before ANY word, only a small subset.

On Real-Life Usage of New Prefixes

See:

• The Guardian: "Earth weighs in at six ronnagrams as new prefixes picked for big and small" by Ian Sample (November 18, 2022)

Seems like a lot of data science is reaching the large scale.

(But, as usual, some of these combos are probably going to be extremely rare. At that big/small, usually it's easier to just use scientific notation.)

Current Words in SCOWL

Even SI prefixes added in the 1960s/1970s:

• exa-
• peta-
• tera-
• giga-
• [...]
• nano-
• pico-
• femto-
• atto-

barely show up in SCOWL:

yotta-

• yottabyte (size 80)
• yottabytes (80)

zetta-

• zettabyte (80)
• zettabytes (80)

exa-

• exabyte (60)
• exabytes (60)
• exajoule (60)
• exajoules (60)
• exameter (95)
  • No 's'!

peta-

• petabyte (60)

• petabytes (60)

• petajoule (60)

• petajoules (60)

• petawatt (60)

• petawatts (60)

• • -

These 4 are more common + show up a lot:

• tera-
  • bits, bytes, hertz, joule, flops, ohm
• giga-
  • bits, bytes, gram, hertz, joule, meter, pascal, watt, flops, second, volt
• nano-
  • second, meter, gram, tesla, watt
• pico-
  • farad, second, gram, mole, joule, meter, watt

And back to rare:

---

femto-

• femtosecond (70)
• femtoseconds (70)
• femtometer (95)
  • No 's'!

atto-

• attosecond (95)

zepto-

• zeptosecond (80)
• zeptoseconds (80)

yocto-

• yocto = none.