-oþa

Old English Pronunciation -oþa Etymology 1 Perhaps from a ang gmw-pro *tegunþ- decad akin to gmw-pro *tehun "ten" in phrases such as ang gmw-pro gmw-pro *þriddjō tegunþ- the third decad which came to be used as ordinals, leading the initial ordinal + *-teg- to be reanalysed as a cardinal number suffixed with gmw-pro *tigiwi (> ang -tiġ) and the remaining -anþ/-unþ as an ordinal suffix. This was then supplied with *-ō (> ang -a) like the other ordinals, resulting in a -anþō or -unþō that regularly develops to ang -oþa.5-715 637 Alternaitvely, a later analogical formation from ang seofoþa seventh, ang eahtoþa eighth, ang nigoþa ninth, and ang teogoþa, alternative form of ang tēoþa tenth, with the -o- of the root reanalysed as belonging to the suffix (etymologically ang -da, ang -ta, ang -þa).10 9 235 Suffix ang suffix forms ordinal numbers from ang twēntigoþa 20th to ang hundendleftigoþa 110th (and possibly unattested ang *hundtwelftigoþa 120th) Derived terms ang Descendants enm -the ordinal conflated with ang -þa References Etymology 2 Suffix ang suffix form ang -oþ gen pl