Where does “underdramatise” come from?

underdramatise (English) comes from English dramatise, from English -ise, from Middle English -ise, from Old French -ise, from Latin -itia, from Latin -ia, from Latin -ius, from Proto-Italic -jōs — Creates adjectives from noun or verb stems.

Ancestry of “underdramatise”, step by step

underdramatise traces back through two separate lines of ancestry.

via English dramatise

StepLanguageWordMeaning
1EnglishdramatiseAlternative spelling of dramatize
2English-iseAlternative form of -ize; Suffix used in...
3Middle English-iseAlternative form of -yssh
4Old French-iseused to form feminine nouns, often denoting a...
5Latin-itia-ness, -ity
6Latin-iaUsed to form a feminine abstract noun, usually...
7Latin-iusforming adjectives from nouns; nominative neuter...
8Proto-Italic-jōsForms comparative adjectives
9Proto-Indo-European-yósCreates adjectives from noun or verb stems

via English under

StepLanguageWordMeaning
1EnglishunderIn or at a lower level than; As a subject of;...
2Middle Englishunderunder
3Old Englishunderunder, beneath
4Proto-Germanicunderamong, between; under, beneath; under
5Proto-Indo-Europeanh₁entérbetween
6Proto-Indo-Europeanh₁enin; in, inside
Every word from Proto-Indo-European -yósEvery word from Latin -iaEvery word from Latin -ius