Early Noldorin
adob
noun. building
adag-
verb. to build, erect, establish
There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
This verb appeared as ᴱN. adag- “build” in the Early Noldorin Grammar of the 1920s, with an infinitive form of adog/adob (PE13/132). The same verb forms appeared in Early Noldorin Word-lists from this same period, with a gloss of “to build” or “to build, erect” derived from ᴱ✶a-tak, and with ᴱN. adob also being a noun for “a building” (PE13/136, 158). In contemporaneous notes on Early Qenya Phonology, Tolkien gave the verb form as adab- “build, establish” derived from ᴱ✶ataku̯- under the early root ᴱ√tak- “stick, [stick] in, fix, firm” (PE14/66).
Conceptual Development: The Gnomish Lexicon of the 1910s had G. bada- “to build”, related to G. bad “building, outhouse, shed” (GL/21).
Neo-Sindarin: Since N. adab “building, house” appeared under the root ᴹ√TAK in The Etymologies (Ety/TAK), I would retain this verb as ᴺS. adaba- “to build, erect, establish” for purposes of Neo-Sindarin, a blending of the various early verb forms. The final a helps keep its past forms distinct from S. tag- “fix”.