Præfikstalord eller præfiksnumeralier af græsk, latinsk og sanskrit oprindelse anvendes blandt andet i kemi og matematik.
Indenfor kemi anvendes mest græske talord, men latinske talord ses også - og disse talord kaldes blandt andet også kemiske præfikser og kemiske talord.
| Tal | Latinsk præfiks | Græsk præfiks | Sanskrit | ||||
|---|---|---|---|---|---|---|---|
| Kardinal | Multipel | Distributiv | Ordinal | Kardinal | Multipel | ||
| 0 | nulli- | – | – | – | |||
| 1⁄12 | unci- | – | – | – | |||
| 1⁄8 | octant- | – | – | – | – | – | |
| 1⁄6 | sextant- | – | – | – | – | – | |
| 1⁄4 | quadrant- | – | – | – | – | – | |
| 1⁄3 | trient- | – | – | – | – | – | |
| 1⁄2 | semi- | – | demi- | – | hemi- | – | – |
| 3⁄4 | dodrant- | – | – | – | – | – | |
| 1 | uni- | sim- | singul- | prim- | hen- | mono-, haplo- | eka- |
| 1 1⁄4 | quasqui- | ||||||
| 1 1⁄2 | sesqui- | ||||||
| 2 | du- | bi-, bis- | bin- | second- | di-, dy-, duo- | dis-, dyakis- | dvi- |
| 3 | tri- | ter- | tern-, trin- | terti- | tri- | tris-, triakis- | tri- |
| 4 | quadri-, quadru- | quater- | quatern- | quart- | tetra- | tetrakis- | chatur- |
| 5 | quinque- | – | quin- | quint- | penta- | pentakis- | pancha- |
| 6 | sexa- | – | sen- | sext- | hexa- | hexakis- | shat- |
| 7 | septem-, septi- | septen- | septim- | hepta- | heptakis- | sapta- | |
| 8 | octo- | – | octon- | octav- | ogdo-, octa-, octo- | octakis- | ashta- |
| 9 | novem- | noven- | nona- | ennea- | enneakis- | navam- | |
| 10 | decem-, dec- | den- | decim- | deca- | decakis- | dasham- | |
| 11 | undec- | unden- | undecim- | hendeca- | hendecakis- | ekadasham- | |
| 12 | duodec- | duoden- | duodecim- | dodeca- | dodecakis- | dvadasham- | |
| 13 | tredec- | treden- | tredecim- | tri(skai)deca- | tri(skai)decakis- | trayodasham- | |
| 14 | quattuordec- | quattuorden- | quattuordecim- | tetra(kai)deca- | tetra(kai)decakis- | chaturdasham- | |
| 15 | quinquadec-, quindec- | quinden- | quindecim- | penta(kai)deca-, pente(kai)deca- | penta(kai)decakis-, pente(kai)decakis- | panchadasham- | |
| 16 | sedec-, sexdec- (men hybrid hexadecimal) | seden- | sedecim- | hexa(kai)deca-, hekkaideca- | hexa(kai)decakis- | shodasham- | |
| 17 | septendec- | septenden- | septendecim- | hepta(kai)deca- | hepta(kai)decakis- | saptadasham- | |
| 18 | octodec- | octoden- | octodecim- | octo(kai)deca-, octa(kai)deca- | octo(kai)decakis- octa(kai)decakis- | ashtadasham- | |
| 19 | novemdec-, novendec- | novemden- | novemdecim- | ennea(kai)deca- | ennea(kai)decakis- | navadasham- | |
| 20* | viginti- | vicen-, vigen- | vigesim- | icosa-, icosi-, eicosa- | eicosakis- | vimshati- | |
| 24 | icositetra-, icosikaitetra-, tetracosa- | chaturvimshati- | |||||
| 30 | triginti- | tricen- | trigesim- | triaconta- | triacontakis- | trimshat- | |
| 40 | quadraginti- | quadragen- | quadragesim- | tetraconta- | tetracontakis- | chatvarimshat- | |
| 50 | quinquaginti- | quinquagen- | quinquagesim- | pentaconta-, penteconta- | pentecontakis- | panchashat- | |
| 60 | sexaginti- | sexagen- | sexagesim- | hexaconta-, hexeconta- | hexecontakis- | shasti- | |
| 70 | septuaginti- | septuagen- | septuagesima- | heptaconta-, hebdomeconta- | hebdomecontakis- | saptati- | |
| 80 | octogint- | octogen- | octogesim- | octaconta-, ogdoëconta- | ogdoëcontakis- | ashiti- | |
| 90 | nonagint- | nonagen- | nonagesim- | enneaconta-, eneneconta-, enneneconta- | enneacontakis- | navati- | |
| 100 | centi- | centen- | centesim- | hecato-, hecatont- | hecatontakis- | shata– | |
| 120 | hecatonicosa-, dodecaconta- | ||||||
| 200 | ducenti- | ducen-, bicenten- | ducentesim- | diacosioi- | diacosakis- | – | |
| 300 | trecenti- | trecen-, tercenten-, tricenten- | trecentesim- | triacosioi- | triacosakis- | – | |
| 400 | quadringenti- | quadringen-, quatercenten-, quadricenten- | quadringentesim- | tetracosioi- | tetracosakis- | ||
| 500 | quingent-, quincent- | quingen-, quingenten-, quincenten- | quingentesim- | pentacosioi- | pentacosakis- | ||
| 600 | sescenti-, sexcenti- | sescen-, sexcenten- | sescentesim- | hexacosioi- | hexacosakis- | ||
| 700 | septingenti- | septingen-, septingenten-, septcenten- | septingentesim- | heptacosioi- | heptacosakis- | ||
| 800 | octingenti- | octingen-, octingenten-, octocenten- | octingentesim- | octacosioi- | octacosakis- | – | |
| 900 | nongenti- | nongen- | nongentesim- | enneacosioi-, enacosioi- | enneacosakis- | – | |
| 1000 | milli- | millen- | millesim- | chilia- | chiliakis- | sahasra– | |
| 10.000 | – | myria- | myriakis- | ayuta– | |||
| Uspecificeret (mere end én) | multi- | – | poly- | bahu– | |||
Matematik:
Kemi:
Andre eksempler:
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