| English | Welsh | Middle Welsh | Old Welsh | Cumbric | Cornish | Breton | Gaelic (Manx) | Irish Gaelic | Scottish Gaelic |
|---|---|---|---|---|---|---|---|---|---|
| zero | dim | dim | dim | dim | mann | mann | veg | náid | neoni |
| one | un | un | un | yan | onan | unan | nane | a haon | a h-aon |
| two | dau / dwy | dau / dwy | dou | tyan | dew | daou | jees | a dó | a dhà |
| three | tri / tair | tri / tair | tri | tethera | tri | tri | tree | a trí | a trì |
| four | pedwar / pedair | pedwar / pedair | petguar | methera | peswar | pevar | kiare | a ceathair | a ceithir |
| five | pump | pump | pimp | pimp | pymp | pemp | queig | a cúig | a còig |
| six | chwech | chwech | chwech | sethera | hwegh | c'hwec'h | shey | a sé | a sia |
| seven | saith | saith | saith | lethera | seyth | seizh | shiaght | a seacht | a seachd |
| eight | wyth | wyth | oith | hovera | eth | eizh | hoght | a hocht | a h-ochd |
| nine | naw | naw | naw | dovera | naw | nav | nuy | a naoi | a naoi |
| ten | deg | deg | dec | dick | deg | dek | jeih | a deich | a deich |
| eleven | un ar ddeg | un ar ddeg | un ar dec | yan-a-dick | unnek | unnek | un-jeig | a haon déag | a h-aon deug |
| twelve | deuddeg | deuddeg | doudec | tyan-a-dick | dewdhek | daouzek | daa-yeig | a dó dhéag | a dhà dheug |
| thirteen | tri ar ddeg | tri ar ddeg | tri ar dec | tethera-dick | tredhek | trizek | tree-jeig | a trí déag | a trì deug |
| fourteen | pedwar ar ddeg | pedwar ar ddeg | petguar ar dec | methera-dick | peswardhek | pevarzek | kiare-jeig | a ceathair déag | a ceithir deug |
| fifteen | pymtheg | pymtheg | pimdec | bumfit | pymthek | pemzek | queig-jeig | a cúig déag | a còig deug |
| sixteen | un ar bymtheg | un ar bymtheg | un ar pimdec | yan-a-bumfit | hwetek | c'hwezek | shey-jeig | a sé déag | a sia deug |
| seventeen | dau ar bymtheg | dau ar bymtheg | dou ar pimdec | tyan-a-bumfit | seytek | seitek | shiaght-jeig | a seacht déag | a seachd deug |
| eighteen | deunaw | deunaw | dounau | tethera bumfit | etek | triwec'h | hoght-jeig | a hocht déag | a h-ochd deug |
| nineteen | pedwar ar bymtheg | pedwar ar bymtheg | petguar ar pimdec | methera bumfit | nownsek | naontek | nuy-jeig | a naoi déag | a naoi deug |
| twenty | ugain | ugain | uceint | giggot | ugens | ugent | feed | fiche | fichead |
The full training programme — row-by-row quizzes, section quizzes with an 80% pass threshold, and progress tracking — is available on Polyglot™, the master platform covering all 22 languages simultaneously.
For Celtic-focused learners: Once on Polyglot™, use the Column Order modal to bring Welsh, Old Welsh, Revitalised Cumbric, Cornish, Breton, Irish Gaelic, and Scottish Gaelic to the front. The triangulation method — seeing all seven Celtic languages side by side — makes patterns immediately visible.
Pronunciation: Use ChatGPT in voice mode or Google Gemini alongside each study session. Read each row aloud and ask for pronunciation feedback — this is an integral part of the recommended learning process.
Rows per Day: Use the 📅 button on Polyglot™ to set your daily target. One row per day is a sustainable pace; at this rate every row you study has already been reviewed by the Penrith Beacon Communications | PBC team.