base
Quenya
talma
base, foundation, root
sundo
noun. base
sundo
base, root, root-word
sundo (þ) noun "base, root, root-word" (SUD), sc. a Quendian consonantal "base". According to VT46:16, Tolkien changed the root to STUD, thereby implying that sundo was earlier þundo (compare Sindarin thond "root"). PE18:95 gives the pl. form as sundur, seemingly implying a stem-form sundu-. It is not, however, used in the compound sundocarmë "base-structure" (PE18:84 not **sunducarmë), a term used in the description of the structure of the various Quendian "bases" or roots.
talma noun "base, foundation, root" (TALAM), also translated "bottom" in the expression "top to bottom", see below.% Talmar Ambaren (place-name, *"Foundations of the World" - this is pre-classical "Qenya" with genitive in -en instead of -o as in LotR-style Quenya) (TALAM). Allative talmanna in the phrase telmello talmanna** "from hood to base**, top to bottom" _(VT46:18; notice misreading "telmanna" in the Etymologies as printed in LR, entry TEL-, TELU-)_