The word "eightieth" is pronounced as /ˈeɪtiθ/. It is spelled with the letters "e-i-g-h-t" followed by "-i-e-t-h". The "e-i-g-h-t" part represents the number 8, while the "-i-e-t-h" ending indicates that it is the ordinal number form. The use of the "-i-e-t-h" ending is consistent with other ordinal numbers, such as "first", "second", "thirtieth", and so on. Despite its complexity, the spelling of "eightieth" follows common English spelling patterns and rules.
The term "eightieth" is an ordinal number that represents the number 80 in a series. It is derived from the cardinal number "eight," which denotes the quantity or amount, and is modified by the suffix "-ieth" to indicate order or position.
As a noun, "eightieth" refers to the eightieth item or unit in a sequence, such as the eightieth day of the year or the eightieth person in a line. It signifies the position of an element within a range of 80 consecutive objects or events.
In its adjective form, "eightieth" describes something that pertains to the number or position 80 within a series. For example, it can be used to discuss the eightieth chapter of a book, the eightieth anniversary of a company, or the eightieth minute of a football match.
Moreover, "eightieth" can be used figuratively to express the intensity, magnitude, or level of an event or concept. It signifies a high degree of completion or significance within a particular context.
In summary, "eightieth" is an ordinal number that represents the position, order, or quantity of 80 within a series. It can serve as both a noun and an adjective, denoting the specific element or characteristic associated with the number 80.
Next after seventy-ninth.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word eightieth is formed from the base number eighty and the suffix -th.
The word eighty comes from the Old English word eahtatig, which is a combination of eahta (eight) and -tig (ten). In Old English, -tig meant group of ten, so eahtatig originally meant eight tens, or eighty.
The suffix -th is derived from the Old English -tha, which indicated ordinal numbers. It has its roots in the Old Norse -thi, which also meant ordinal numbers.
Therefore, combining eighty with the -th suffix creates eightieth, which means the ordinal number for the quantity of eighty.