Where does “gefälligst” come from?

gefälligst (German) comes from German -st, from Middle High German -est, from Serbo-Croatian -ōst, from Proto-Slavic -ostь — Used with adjectival stems to form abstract...

gefälligst (German): used to sharply reinforce a demand or order, demanding obedience and often expressing annoyance, including in indirect speech; had better, already

Definitions

  1. used to sharply reinforce a demand or order, demanding obedience and often expressing annoyance, including in indirect speech; had better, already

Ancestry of “gefälligst”, step by step

StepLanguageWordMeaning
1German-stverb suffix for the second-person singular;...
2Middle High German-est—
3Serbo-Croatian-ōst—
4Proto-Slavic-ostьUsed with adjectival stems to form abstract...
Every word from Proto-Slavic -ostь →Every word from Serbo-Croatian -ōst →Every word from German -st →