Unglossed roots in the Qenya Lexicon of the 1910s with variants ᴱ√SIVI and ᴱ√SIWI and a single unglossed derivative ᴱQ. sivilda (QL/84). It is difficult to guess what Tolkien intended for these forms to mean, though they conceivably reemerged as the later roots ᴹ√SIW “excite, egg on, urge” (Ety/SIW) or √SIB “rest, quiet” (VT44/35).