ondo noun "stone" as a material, also "rock" (UT:459, GOND). Pl. ondor in an earlier variant of Markirya; partitive pl. locative ondolissë "on rocks" in the final version. Compounded in ondomaitar "sculptor in stone" (PE17:163), Ondoher masc.name, *"Stone-lord" (ondo alluding to Ondonórë = Sindarin Gondor, "stone-land") (Appendix A), #ondolunca ("k") "stonewain", possessive form in the place-name Nand Ondoluncava "Stonewain Valley" (PE17:28, also Ondoluncanan(do) as a compound). Ondolindë place-name "Gondolin" (SA:gond, J.R.R. Tolkien: Artist & Illustrator p. 193); see Ondo. Earlier "Qenya" has Ondolinda _(changed from Ondolin) "singing stone, Gondolin" (LT1:254)_
on, ondo noun "stone" (LT2:342, LT1:254 probably only ondo in LotR-style Quenya, see below). Various "Qenya" forms: ondoli "rocks" (MC:213; this would be a partitive plural in LotR-style Quenya), ondolin "rocks" (MC:220), ondoisen "upon rocks" (MC:221), ondolissen "rocks-on" (MC:214; the latter form, partitive plural locative, is still valid in LotR-style Quenya).
Caliondo, masc. name, maybe a longer form of Calion above (unless Caliondo contains ondo "rock") (UT:210)