Warm is "mainit" and cool is "malamig" in Tagalog.
Tagalog Translation of WATER SPINACH: kangkong
Lye water in Tagalog is "tuba ng apog" or "gatas-gatasan."
pandilig
the warm water floats
...apulid
tubig
singkamas
Do you mean the actual glass itself is warm or the water inside? If the water is warm then its a glass of warm water What is the noun you want to modify -- the glass or the water? It's hard to imagine a warm glass containing cold water, but I suppose it's possible.
Warm water is little bit hotter than cold water. The temperature of warm water is higher than that of cold water
in warm water
"Tubig" in Tagalog means water.