The regional variant of the suffix of the pr.ppl. peculiar to the North and parts of the North Midland, corresp. to -ende, -inde, -inge in other areas.
…
Forming the pres. & past ind.sg.2 of all verbs (exc. the present of some of the preterit presents) in the North and the North Midland [Nhb. -es, -as]: e.g. sing-es, tāk-es, lǒv-es; sang-es, tōk-es,……
A suffix inherited from OE, with the meaning 'ten', in the cardinal numerals twenti, thriti, fourti, fifti, sixti, seventi, eighteti, ninti and the combs. hundtentiȝ, hundseventi. In ME nearly all……