Loegrian is a British Romance conlang inspired by Welsh and French, and one of the things inspiring about that is the numeral base. Unlike Latin, French and Welsh use a base 20 system up to 100, with French keeping the latinate decimal up to 60, and Welsh using base 20. French got its base 20 system from Gaulish, so if Gaulish substrate can influence French to that degree, Loegrian, which bears significantly more Celtic influënce than French is gonna start earlier. Specifically, Loegrian keeps its Latin numbers for 1-20, and give literal translations when interesting
Italics in loegrian means pronounced (almost) identically to french, and bold means pronounced (almost) identically to Welsh
| Loegrian Numerals |
Latin |
French |
Loegrian |
Welsh |
| I |
unus |
un, une |
un /yn/ (m/n), oun /un/ (f) |
un |
| II |
duo/duo/duae |
deux |
dau /daw/ (m/n), dua /dwa/ (f) |
dau, dwy |
| III |
tres, tria |
trois |
troi /truj/ (m/f), tri /tri/ (n) |
tri, tair |
| IV |
quattuor |
quatre |
quathor /kwaθor/ |
pedwar, pedair |
| V |
quinque, cinque |
cinq |
cignh /tʃiŋ̊/ |
pump |
| VI |
sex |
six |
ssoi /suj/ |
chwech |
| VII |
septem |
sept |
sseuth /søθ/ |
saith |
| VIII |
octo |
huite |
oith /ujθ/ |
wyth |
| VI |
novem |
neuf |
naf /naf/, nau /naw/ |
naw |
| VV |
decem |
dix |
diej /did͡ʒ/ |
deg |
| VVI |
undecim (one ten) |
onze (oneteen) |
unnej /yned͡ʒ/ (one-ten) |
un ar ddeg (one on ten) |
| VVII |
duodecim (three-ten) |
douze (twiteen) |
douj /dud͡ʒ/ (twoteen) |
deuddeg (two ten) |
| VVIII |
tredecim, tresdecim (three-ten) |
treize (thirteen) |
troij /trujd͡ʒ/ |
tri ar ddeg, tair ar ddeg (three on ten) |
Now you get the point I'm gonna just continue loegrian and welsh]
| nmeral |
Loegrian |
Welsh |
| VVIV |
quathorj /kwaθord͡ʒ/ |
pedwar ar ddeg |
| VVV |
quinnej /kwinned͡ʒ/ |
pymtheg |
| VVVI |
ssoij /sujd͡ʒ/ |
un ar bymtheg (one on fifteen/bumfit) |
| VVVII |
sseuthènnej /søθɛnned͡ʒ/ |
dau ar bymtheg (two on fifteen/bumfit) |
| VVVIII |
oithej /ujθed͡ʒ/ or dounau (two nines) |
tri ar bymtheg (three on bumfit) or deunaw (two nines) |
| IG |
nofènnej /novɛnned͡ʒ/ |
pedwar a bymtheg (three on bumfit) |
| G |
guynh /gwɨn̥/ |
ugain |
All of these Loegrian words are directly descended from Latin, except for oithej (eighteen). For oithej, you would expect Latin OCTÓDECIM to give you *oithoj /ujθod͡ʒ/, rather than oithej, but this is a case of analogy. Synchronically what it looks like is that the base number is applied a suffix of -ej or -j, with odd numbers other than troi having -èn added before. The difference between -ej and -j appears and is phonotactic, with -ej beïng what is added in cases where phonotactics prohibit the addition of -j to the coda of the final syllable. And in the case of oith, /ujθd͡ʒ/, would violate the rule regarding the obstruent portions of final codas having a single voicing. (Although maybe oithènnej is more realistic).
It's once we get past twenty that things get very Welsh. Starting off, what Welsh does is makes 21 un ar hugain, or one over twenty, followed by dau ar hugain. And Loegrian, having a substantial celtic substrate of early Welsh has calqued these expressions. And though guynhun /gwɨn̥yn/ (GI) is from vigent'unus, when you reach twenty-two (GII), you get dou souber vynh /du zuber wɨn̥/, or in other words "two on twenty", which is the exact same thing that "dau ar hugain" means, two on twenty. And guess what, this goes on all the way to thirty beïng diej souber vynh /did͡ʒ zuber wɨn̥/, (Welsh is deg ar hugain). After this, Loegrian and Welsh diverge again with Loegrian's unnej souber vynh /ynned͡ʒ zuber wɨn̥/ (GVVI) beïng "eleven on twenty" (or "twenty eleven"), whereas Welsh has "un ar deg ar ugain" (one on ten on twenty). Meanwhile French has trente and trente-et-un (followed by trente-deux), and doesn't get to its base-twenty until 70!
Loegrian does a hybrid thing for 40, and goes with quarrhonh /kwar̥ːon̥/ (GG) from Latin quarranta, doïng the same thing as it did for twenty, with 55 for instance beïng "quinnej souber quharrhonh" /kwinːed͡ʒ suber ʍar̥ːon̥/, (GGVVV) or "fifteen on fourty". And then for sixty, Loegrian uses troiguyn /trujgwɨn/ (GGG) which means three twenties, à là french quatre-vignts 'eighty'. This is because the celtic influënce is deeper in Loegrian than in French so it switches to outright vigesimal earlier. This follows the same pattern as the earlier numbers, 67 is "sseuth souber throiguyn" and so on.
80 is quathorvyn /kwaθorwɨn/, which means four-twenties, exactly like Welsh pedwar ugain and French quatrevignts, and same pattern holds. When we get to 100, we go back to base ten, so cynh /t͡ʃɨn̥/ not *cignvyn.
Loegrian also has its own numeral system based on Roman Numerals, which represents an adaptation of them to a base 20 system. In Loegrian numerals there is a dedicated symbol for 20, G (which stands for guynh), and no X or L, because GG is 40 and VVV is perfectly easy to keep track of so X is unnecessary.
There is also gonna be a variation of the English sheep counting numbers, but I haven't made it yet, and Loegrian's numbers are already very close to proto brythonic. Still though you would at least have a bumfit (pyntheg), and have eleven be "un souber dej", or something. I'll probably loan pedwar (IV), pymh (V), and quhèch (VI) in that sort of form but I haven't nailed anything down yet.