silico-, silic-
(Latin: flint, quartz, sand; a crystalline compound [SiO2])
pneumonoultramicroscopicsilicovolcanoconiosis, pneumonoultramicroscopicsilicovolcanokoniosis
This is one of the longest words in the English language and is divided into the following segments: pneu, mono, ultra, micro, scopic, silico, volcano, coni, osis; and together they mean, "miner's lung disease", or "a disease of the lungs caused by the inhalation of very fine silicate, or quartz dust, and occurring especially in the lungs of miners".
silex
silica
silicate
silicatosis
siliceous
silicic
siliciferous
silicify
silicious
silicity
silicoflagellate
silicoflouric
silicole
silicolous
Other related "sand" units:
amatho-;
ammo-;
areni-;
thino-.