[cainen] ("k") cardinal "ten" (KAYAN/KAYAR). According to VT48:12, Tolkien eventually rejected this word (cainen would only mean "I lay", sc. the pa.t. cainë with the ending -n "I"). See quain, quëan.
Quenya
quainëa
ordinal. tenth
quain
cardinal. ten
quain
cardinal. ten
quëan
cardinal. ten
caina
ordinal. tenth
cainen
cardinal. ten
cainen
cardinal. ten
cëa
cardinal. ten
[cëa, cëan ("k") cardinal "ten", forms Tolkien later abandoned in favour of quain or quëan. An adjectival form caina ("k") was also listed, but must likewise be considered obsolete. (VT48:12-13, VT49:54)]
cëa(n)
cardinal. ten
quëan
cardinal. ten
quëan cardinal "ten", also quain (VT48:6, 12, 20). Quain or quëan replaced the form cainen in Tolkiens conception.
quain cardinal "ten" (also quëan); quainëa ordinal "tenth" (VT48:6, 20; VT42:25). Quain or quëan replaced the form cainen in Tolkiens conception.