Middle Primitive Elvish
mī/imi
root. in, inside
imi
root. in
ne
root. *in
(n)di
root. in
kyelep
root. silver
me
pronoun. we (exclusive)
ndē̆-
prefix. in, inside
telep
root. silver
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
mī/imi
root. in, inside
imi
root. in
ne
root. *in
(n)di
root. in
kyelep
root. silver
me
pronoun. we (exclusive)
ndē̆-
prefix. in, inside
telep
root. silver
A rejected root in The Etymologies of the 1930s with a strengthened form ✱ndē̆ serving as the basis for the prefix in N. nestag- “insert”, possibly related to ᴹ√NED “middle” (EtyAC/NĒ̆). The strengthened form may have been replaced by the root ᴹ√(N)DI “in” (EtyAC/NDI), but in later writing ✶ndī was given the meaning “beneath, not touching, under” (PE17/95). Despite the rejection of the root, the verb N. nestag- “insert” remained unmodified under the root ᴹ√STAK (Ety/STAK), and there is further evidence for the ne- prefix in the verb N. neledh- “enter” appearing on the 1936 draft of Thror’s Map from this same time period (TAI/150).
Neo-Eldarin: For purposes of Neo-Eldarin, I think it is worth retaining this (Noldorin and Sindarin-only?) prefix ne- “in”.