Where does “kissing bug” come from?

kissing bug (English) comes from English kissing, from Middle English kissynge, from Middle English kissen, from Old English cyssan, from Proto-West Germanic *kussijan, from Proto-Germanic kussijaną, from Proto-Germanic -janą, from Proto-Indo-European -yéti — he, she.

kissing bug (English): Any of a number of haematophagous bugs belonging...

Definitions

  1. Any of a number of haematophagous bugs belonging...

Ancestry of “kissing bug”, step by step

kissing bug traces back through two separate lines of ancestry.

via English kissing

StepLanguageWordMeaning
1Englishkissingpresent participle of kiss; That kisses; Just...
2Middle Englishkissyngekiss action of kissing
3Middle Englishkissento kiss
4Old Englishcyssanto kiss
5Proto-West Germanic*kussijanto kiss
6Proto-Germanickussijanąto kiss
7Proto-Germanic-janąDerives denominatives from nouns and factitives...
8Proto-Indo-European-yétiCreates intransitive, often deponent,...
9Proto-Indo-Europeanyé-
10Chichewaiyehe, she

via English bug

StepLanguageWordMeaning
1EnglishbugAn insect of the order Hemiptera; Any of various...
2Englishbuggebeetle
3Middle Englishbuggebogy, hobgoblin, bugbear; scarecrow
4Proto-Germanicbugja-swollen up, thick
5Proto-Indo-Europeanbʰew-to grow, swell; to swell, wax, grow; to blow; to...
Every word from Chichewa iyeEvery word from Proto-Germanic -janąEvery word from Proto-Indo-European -yéti