There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
cailthi
noun. kiss
ôni cailthi a·mabwid glen irtha
he pressed a kiss upon her slender hands
ôni cailthi mabir gleni nan·hirilion
he kissed the slender hands of the ladies
miqi
root. kiss
miqe
noun. kiss
miqilis
noun. kiss
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
miqu-
verb. to kiss
miqu- vb. "to kiss", the pa.t. minquë ("q") is cited, not to be confused with the cardinal minquë "eleven" (QL:61). Also miquë ("q")noun "a kiss". Old plural form miquilis ("q") "kisses" (MC:215; this is "Qenya")
miquë
noun. kiss
mikw Reconstructed
root. kiss
mib-
verb. kiss
The root ᴱ√MIQI “kiss” appeared in the Qenya Lexicon of the 1910s with derivatives like ᴱQ. miq- “to kiss” and ᴱQ. miqele “kissing” (QL/61). Derivatives also appeared in the contemporaneous Gnomish Lexicon such as G. mib “a little kiss, a peck” and G. mictha- “kiss, bill” (GL/57). The word ᴱQ. miqilitse “little or tender kiss” appeared in the ᴱQ. Nieninqe poem from the 1920s (MC/215; PE16/90, 92). Tolkien created a new version of this poem in 1955 and reused many of the same words, including Q. mikwi- “kiss” and Q. miquelis “(soft, sweet) kiss” (PE16/96); the latter also appeared as ᴹQ. miqilis “kiss” in the Declension of Nouns from the early 1930s (PE21/33). These later examples support the ongoing validity of this root, perhaps as ✱√MIKW.