hourglass
OWR-glass · noun
English
Origin
Hourglass is a straightforward compound of hour and glass, formed in English to name the timekeeping device made of glass and marking hours.
Journey
The word has stayed close to its literal sense from the start, simply naming the glass instrument used to track the passage of an hour.
Related words
No related or cognate word is given beyond its two plain building blocks, hour and glass.