Quenya 

tanta-

verb. to play a harp

tanta

double

tanta (2) (prob. adj.) "double" (TATA)

tanta

harp

tanta (1) noun "harp", also as verb tanta- "to play a harp" (VT41:10)

tantila

harp

tantila noun "harp" (VT41:10)

tanta-

verb. to bounce, bound, rebound; to swing (intr.), sway, dandle, wave

tantara

adjective. bouncing, resilient

atatya

double

atatya vb? adj.? "double" (VT42:26)

atatya

adjective. double

The Quenya word for “double” in notes from the late 1960s derived from primitive ✶atatya, an adjective form of the root √ATATA (VT42/26-27).

Conceptual Development: The Etymologies of the 1930s had ᴹQ. tanta “double” under the root ᴹ√TATA “two” (Ety/TATA) and ᴹQ. atwa “double” under the root ᴹ√AT(AT) “again, back” (Ety/AT(AT)). The latter was glossed “either ... or” in Demonstrative, Relative, and Correlative Stems (DRC) from 1948 (PE23/107); see the entry for ᴹQ. atwa for further discussion.

atwa

double

atwa adj. "double" (AT(AT) )

nandë

harp

nandë (2) ("ñ")noun "harp" (ÑGAN/ÑGÁNAD; according to VT46:3, Tolkien changed the final vowel from -a to -ë)

nótë

number

nótë noun "number" (NOT)

tant(il)a

noun. harp