een

From Dutch een, from Middle Dutch een, from Old Dutch ēn, ein, from Proto-West Germanic *ain, from Proto-Germanic *ainaz, from Proto-Indo-European *h₁óynos.


elf

From Dutch elf, from Middle Dutch ellef, elf, from Old Dutch *ellef, from Proto-Germanic *ainalif.


twee

From Dutch twee, from Middle Dutch twee, twe, from Old Dutch twē, neuter form of twēne, from Proto-West Germanic *twai-, from Proto-Germanic *twai, from Proto-Indo-European *dwóh₁.


drie

From Dutch drie, from Middle Dutch dri, drie, from Old Dutch *thrie, from Proto-Germanic *þrīz, from Proto-Indo-European *tréyes.


vier

From Dutch vier, from Middle Dutch vier, from Old Dutch viuwar, vier, from Proto-Germanic *fedwōr, from Proto-Indo-European *kʷetwṓr, the neuter form of *kʷetwóres.


tien

From Dutch tien, from Middle Dutch tien, from Old Dutch tēn, *tien, from Proto-Germanic *tehun, from Proto-Indo-European *déḱm̥.


twaalf

From Dutch twaalf, from Middle Dutch twelef, tweelf, also twalef, twaelf, from Old Dutch *twelif, *twalif, from Proto-Germanic *twalif.


dertien

From Dutch dertien, from Middle Dutch dertene, dertiene, from Old Dutch *thritēn, *thritien, from Proto-Germanic *þritehun.


veertien

From Dutch veertien, from Middle Dutch viertien, veertien, from Old Dutch *viurtēn, *viurtien, from Proto-Germanic *fedurtehun.


negentien

From Dutch negentien, from Middle Dutch neghentien, from Old Dutch *niguntēn, *niguntien, from Proto-Germanic *newuntehun.


twintig

From Dutch twintig, from Middle Dutch twintich, twintech, from Old Dutch *twēntig, from Proto-Germanic *twaintigaz, *twai tigiwiz.


veertig

/ˈfɪə̯r.təχ/

From Dutch veertig, from Middle Dutch viertich, vēertich, from Old Dutch *viertig, from Proto-Germanic *fedwōr tigiwiz.


nul

From Dutch nul, from Middle Dutch nul, from Middle French nul or Italian nulla, from Latin nūllus.


ses

From Dutch zes, from Middle Dutch ses, from Old Dutch *ses, from Proto-Germanic *sehs, from Proto-Indo-European *swéḱs.


agt

From Dutch acht, from Middle Dutch achte, acht, from Old Dutch ahto, from Proto-Germanic *ahtōu, from Proto-Indo-European *oḱtṓw.


sewe

From Dutch zeven, from Middle Dutch seven, from Old Dutch sivun, sivon, from Proto-Germanic *sebun, from earlier *sebunt, from Proto-Indo-European *septḿ̥, with -t added through influence of "nine" and "ten".


vyf

From Dutch vijf, from Middle Dutch vijf, from Old Dutch *fīf, vīf, from Proto-West Germanic *fimf, from Proto-Germanic *fimf, from *pémpe, variant of Proto-Indo-European *pénkʷe.


nege

From Dutch negen, from Middle Dutch neghen, from Old Dutch nigun, from Proto-Germanic *newun, from earlier *newunt, from Proto-Indo-European *h₁néwn̥, with -t added through influence of "ten".


vyftien

From Dutch vijftien, from Middle Dutch vijftien, from Old Dutch *vīftēn, *vīftien, from Proto-Germanic *fimftehun.


sestien

From Dutch zestien, from Middle Dutch sestien, from Old Dutch *sestēn, *sestien, from Proto-Germanic *sehstehun.


sewentien

From Dutch zeventien, from Middle Dutch seventien, from Old Dutch *sivontēn, *sivontien, from Proto-Germanic *sebuntehun.


duisend

From Dutch duizend, from Middle Dutch dusent, from Old Dutch thūsunt, from Proto-Germanic *þūsundī.


agtien

From Dutch achttien, from Middle Dutch *achtetien, *achttien, from Old Dutch *ahtotēn, *ahtotien, from Proto-Germanic *ahtōutehun.