centesimal adjective & noun. 
[sɛn'tɛsɪm(ǝ)l] L17.[from Latin centesimus hundredth, from centum a hundred: see -AL1.]A. adjective.
1.  Hundredfold. Only in 
L17.2.  Reckoning or reckoned by hundredths. 
E19.b. noun. A hundredth part. Now 
rare or 
obsolete. 
L17. ■   centesimally adverb E18. ■   centesimate verb trans. select every hundredth person in (a group) for punishment 
M18. ■   centesi'mation noun execution etc. of every hundredth person 
M17.  [TahlilGaran] English Dictionary ▲