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!
ulmo
masculine name. Ulmo
ar ulmon
proper name. Day of Ulmo, second day of the Valian week
vaiaro
masculine name. Ulmo
Another name for Ulmo appearing in The Etymologies from the 1930s (Ety/WAY), apparently an agental formation combining Vaiya “Ocean” with the agental suffix -ro.
Conceptual Development: Similar names ᴱQ. Vailimo and ᴱQ. Vaimo appeared in the Qenya and Gnomish Lexicon from the 1910s and the earliest Lost Tales (GL/22, QL/100, LT1A/Vai, LT1/101).
hyalma
noun. conch, shell, horn of Ulmo
A noun in The Etymologies of the 1930s glossed “shell, conch, horn of Ulmo” derived from primitive ᴹ✶syalmā under the root ᴹ√SYAL (Ety/SYAL). In this document hyalma was given as the name of tengwa #33 [9], and it appeared again as the name of this tengwa in notes on The Feanorian Alphabet from the 1930s (PE22/22) and 1940s (PE22/51) with the glosses “conch” and “conch, shell” respectively. In the 1940s document, hyarmen “south” was given as an alternate name of the tengwa, and hyarmen was the name Tolkien used in The Lord of the Rings proper.
The Quenya name for the 2nd day of the Valian 5-day week, a combination of are “day” and the genitive of Ulmo (Ety/LEP).