Where does “глечер//glečer” come from?

глечер//glečer (Serbo-Croatian) comes from German Gletscher, from Alemannic German Gletscher, from Romansch glatscher, from Latin glaciarium, from Latin -ārium, from Latin -um, from Proto-Italic *-om, from Proto-Indo-European *-oHom.

Ancestry of “глечер//glečer”, step by step

StepLanguageWordMeaning
1GermanGletscherglacier
2Alemannic GermanGletscherglacier
3Romanschglatscher
4Latinglaciariumglacier
5Latin-āriumused primarily to form nouns of purpose from other nouns, such as places where things are kept or objects used for a particular end
6Latin-umnominative neuter singular of -us; accusative...
7Proto-Italic*-om
8Proto-Indo-European*-oHom
Every word from Proto-Indo-European *-oHomEvery word from Latin -āriumEvery word from Latin -um