A word for “pin” in the Qenya Lexicon of the 1910s with variants piek and piet as well as a stem form piekk- (QL/73).
Early Quenya
pi(o)pin
noun. haws, fruit of hawthorns
pin
noun. little thing, mite
-(l)inta
suffix. diminutive
-(w)inta
suffix. diminutive
-(w)inte
suffix. diminutive
-inya
suffix. diminutive
-itsa
suffix. diminutive
-itse
suffix. diminutive
-linte
suffix. diminutive
-litse
suffix. diminutive
-lla
suffix. diminutive
-lle
suffix. diminutive
-pi(t)
suffix. diminutive
-pin(ke)
suffix. diminutive
-tsa
suffix. diminutive
-íne(a)
suffix. diminutive
keny-
verb. to prick
koli-
verb. to prick
mi(e)-
prefix. diminutive
mike-
prefix. diminutive
miki-
prefix. diminutive
piek
noun. pin
pieksin
noun. brooch
piekta-
verb. to prick, pin-prick
A word appearing as piekta- or pietya- “prick, pin-prick” in the Qenya Lexicon of the 1910s, verb forms of ᴱQ. piek or piet “pin” (QL/73).
piet
noun. pin
pietya-
verb. to prick, pin-prick
pink
noun. little thing, mite
pirin
noun. thin rod, pin
A word appearing as ᴱQ. pirin (pirind-) “thin rod, pin” in the Qenya Lexicon of the 1910s under the early root ᴱ√PIRI having to do with cylinders and spinning (QL/74).
Neo-Quenya: In 1959 Tolkien gave a new meaning to the root √PIR as “close eyes, blink, wink” (PE17/146), but I believe this was a transient idea; see that entry for details. As such, I use the Neo-Root ᴺ√PIR with its earlier meaning “cylinder” and would use this to salvage ᴺQ. pirin “thin rod, pin”.
takse
noun. nail
tas
noun. nail
A word appearing as ᴱQ. piopin or pipin in the Qenya Lexicon of the 1910s glossed “the fruit of hawthorns, haws”, apparently a combination of ᴱQ. pio “berry” and ᴱ√PINI “✱small” (QL/74). Both piopin and pipin appeared in the contemporaneous Poetic and Mythological Words of Eldarissa with the gloss “haws” (PME/74).
Neo-Quenya: I’d retain ᴺQ. piopin for purposes of Neo-Quenya for the fruit of hawthorns, since there is evidence that ✱√PI(N) “little” survived in Tolkien’s later writing.