Guides consisting of narrow strips of wood or of wide sub-jambs at interior doorways used around openings and at the floor line to strike off plaster. They provide a level plaster line for installatio [..]

"residue at the bottom of a liquid," mid-14c., perhaps from past tense of grind (v.). Other senses, such as "enclosed portion of land" (mid-15c.) are from ground (n.).

(n) your basis for belief or disbelief; knowledge on which to base belief(n) the enclosed land around a house or other building(n) a tract of land cleared for some special purposes (recreation or buri [..]

The reason or point that something (such as a legal claim or argument) relies on for validity.

The relevant legislation details the legal grounds on which representations against liability for a penalty may be made. These are the same grounds on which an Adjudicator may consider an appeal again [..]

Pieces of wood embedded in plaster of walls to which skirtings are attached. Also wood pieces used to stop the plaster work around doors and windows.

timbers which support and onto which the shutts planking is fastened on a narrow boat Source: MDA: Waterways Object Name Thesaurus

are the reason or point that something (as a legal claim or argument) relies on for validity, such as grounds for divorce.