runme -rum- gismu

x1 melts [becomes liquid from solid state] at temperature x2 and pressure x3.

x1 runs (= rumfle). See also dunja, febvi, lunsa, bisli.

In notes:

bisli
x1 is a quantity of/is made of/contains ice [frozen crystal] of composition/material x2.
dunja
x1 freezes/jells/solidifies at temperature x2 and pressure x3.
febvi
x1 boils/evaporates at temperature x2 and pressure x3.
lunsa
x1 condenses/liquefies on/into x2 at temperature x3, pressure x4; x1 is dew/condensate on x2.