Where does “cietums” come from?

cietums (Latvian) comes from Latvian -ums, from Proto-Balto-Slavic -umas.

cietums (Latvian): prison; hardness, solidity, thickness; hard spot,...

Definitions

  1. prison; hardness, solidity, thickness; hard spot,...

Ancestry of “cietums”, step by step

StepLanguageWordMeaning
1Latvian-umsAdded to adjectives to form nouns indicating a...
2Proto-Balto-Slavic-umas
Every word from Proto-Balto-Slavic -umasEvery word from Latvian -ums