Webster's Revised Unabridged Dictionary · 1913

Tath

Tath (tath) , third person singular present

third person singular present of Ta, to take. [obsolete]

Tath , noun

[Prov. English; of Scand. origin; compare Icelandic tae dung, taea the grass of a manured pasture, teeja to manure. r58. Compare Ted.]

1.
Dung, or droppings of cattle. [Provincial English & Scottish]
2.
The luxuriant grass growing about the droppings of cattle in a pasture. [Provincial English & Scottish]

Tath , transitive verb

To manure (land) by pasturing cattle on it, or causing them to lie upon it. [Provincial English & Scottish]