Where does “frequentíssimo” come from?

frequentíssimo (Portuguese) comes from Portuguese freqüente, from Latin frequens, from Proto-Italic frekʷents, from Proto-Indo-European bʰrekʷ- — to condense; to crowd together.

Ancestry of “frequentíssimo”, step by step

StepLanguageWordMeaning
1PortuguesefreqüenteSuperseded spelling of frequente
2Latinfrequenscrowded, crammed, packed; frequent, repeated
3Proto-Italicfrekʷents—
4Proto-Indo-Europeanbʰrekʷ-to condense; to crowd together
Every word from Proto-Indo-European bʰrekʷ- →Every word from Proto-Italic frekʷents →Every word from Latin frequens →