Where does “semidemented” come from?

semidemented (English) comes from English demented, from English dement, from Latin demento, from Latin dēmēns, from Latin dē-, from Latin dē, from Latin post, from Latin poste — afterwards, post; by, at.

semidemented (English): Somewhat or partially demented

Definitions

  1. Somewhat or partially demented

Ancestry of “semidemented”, step by step

semidemented traces back through two separate lines of ancestry.

via English demented

StepLanguageWordMeaning
1EnglishdementedInsane or mentally ill; Suffering from dementia;...
2Englishdementinsane, demented; An insane person, or one...
3LatindementoI make mad or crazy, drive crazy; I bewitch; I...
4Latindēmēnsout of one’s mind or senses: mad, raving, insane, crazy; more generally: foolish, reckless, distracted, infatuated
5Latindē-of; from
6Latinof; concerning; about
7Latinpostbehind; after, since, besides, except; behind,...
8Latinposteablative singular of postis
9Proto-Italicpostibehind, after
10Proto-Indo-Europeanpóstiafter
11Proto-Indo-Europeanpósafterwards, post; by, at

via English semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially
Every word from Proto-Indo-European pós
semidemented — Etymology, Origin & Word History | Etymology Explorer