1st - fos

2nd - seken

3rd - thot

4th - fot

5th - fit

6th - sison

7th - senon

8th - eidon

9th - nainon

10th - tenon

11th - lenon

12th - twelon

13th - thotinon

14th - fotinon

15th - fitinon

16th - sistinon

17th - sentinon

18th - eitinon

19th - naitinon

20th - twenit

30th - thotit

40th - fodit

50th - fidit

60th - sistit

70th - sentit

80th - eidit

90th - naidit

100th - honet

1000th - thauzetmillionthmiyonet

Quelle: https://the100.fandom.com/wiki/Trigedasleng/Linguistics#Ordinal%20Numbers

Ich lasse das so im Englischen. Eigentlich müsste es ja "1ste" heißen, aber ich denke, das ist nicht so schlimm.