Where does “обследовать” come from?

обследовать (Russian) comes from Russian сле́довать, from Russian след, from Old East Slavic слѣдъ, from Proto-Slavic slědъ, from Latvian slaidus, from Proto-Balto-Slavic sleid-, from Proto-Indo-European sleidʰ- — slippery, to slide.

обследовать (Russian): to inspect, to examine; to study, to investigate,...

Definitions

  1. to inspect, to examine; to study, to investigate,...

Ancestry of “обследовать”, step by step

обследовать traces back through two separate lines of ancestry.

via Russian сле́довать

StepLanguageWordMeaning
1Russianсле́доватьto follow
2Russianследtrack; footprint, footstep; trace, sign
3Old East Slavicслѣдъtrace, track
4Proto-Slavicslědъtrack, trace
5Latvianslaidusaccusative plural masculine form of slaids
6Proto-Balto-Slavicsleid-
7Proto-Indo-Europeansleidʰ-slippery, to slide

via Russian об–

StepLanguageWordMeaning
1Russianоб–before certain letters

Words derived from “обследовать

Every word from Proto-Indo-European sleidʰ-Every word from Proto-Balto-Slavic sleid-Every word from Latvian slaidus