A prefix meaning “awkward, hard” in Definitive Linguistic Notes (DLN) from 1959 derived from the root √GUR of similar meaning, used in words such as gornod “hard to count” (PE17/154). This example was given as gornodui [unglossed] in draft notes (PE17/172). Tolkien said:
> Sindarin owing to approach of √GUR- to other stems (as ÑGUR- “death”, NGOR- “terror, dread”) tends to use gor- in a very strong sense of things very painful and horrible to do; and uses dir- (tough) for lesser efforts (PE17/154).
As an example, Tolkien gave gorbedui “only to be said with horror or grief, lamentable to tell” as opposed to dirbedui “hard to utter, difficult to pronounce”.
_ pref. _owing to approach of GUR to other stems (as ÑGUR 'death', ÑGOR 'terror, dread') Sindarin tended to use gor- in a very strong sense of things very painful and horrible to do. It used dír- 'tough' for lesser efforts. Q. uru-. >> dirbedui, gorbedui, gornod