ailin ("g.sg. ailinen", in Tolkien's later Quenya dat.sg.) "pool, lake" (AY, LIN1, LT2:339). Fem. name Ailinel (likely Ailinell-), perhaps ailin + the feminine ending -el (as in aranel "princess"), hence "Lake-woman" or similar (UT:210).
Quenya
aranel
princess
aranel
noun. princess
ailin
g.sg. ailinen
turinqui
queen
turinqui ("q") noun "queen" (LT1:260; apparently the fem. of tur. In Tolkien's later Quenya, "queen" is tári.)
tári
queen
tári noun "queen", used especially of Varda (TĀ/TA3, LT1:264), etymologically "she that is high" (SA:tar). Dative tárin in the Elaine inscription (VT49:40), genitive tário in Namárië. Elentári "Starqueen", a title of Varda. (Nam, RGEO:67). Tarinya "my queen" (UT:179; sic, not *tárinya). Táris or tárissë "queenship" (PE17:155)
tári
noun. queen, queen, [ᴱQ.] mistress, lady
varni
queen
varni noun "queen" (LT1:273; rather tári in Tolkien's later Quenya)
rianna
noun. queen
aranel noun "princess" (likely *aranell-) (UT:434)