Where does “similitūdinem” come from?

similitūdinem (Latin) comes from Latin similitūdō, from Latin similis, from Proto-Italic semalis, from Proto-Indo-European sem- — together, one.

Ancestry of “similitūdinem”, step by step

StepLanguageWordMeaning
1LatinsimilitūdōLikeness, resemblance, similarity; imitation
2Latinsimilissimilar
3Proto-Italicsemalissimiliar
4Proto-Indo-Europeansem-together, one
Every word from Proto-Indo-European sem- →Every word from Proto-Italic semalis →Every word from Latin similis →