Where does “oplan” come from?

oplan (English) comes from English operational, from English operation, from Middle English operacioun, from Old French operacion, from Latin operātiō, from Latin -tiō, from Latin dissertātiō, from Latin dissertus — small stone, pebble; gravel, rubble.

oplan (English): operational plan

Definitions

  1. operational plan

Ancestry of “oplan”, step by step

oplan traces back through two separate lines of ancestry.

via English operational

StepLanguageWordMeaning
1EnglishoperationalOf or relating to operations, especially military...
2EnglishoperationThe method by which a device performs its...
3Middle Englishoperaciounoperation
4Old Frenchoperacionaction; act; operation
5Latinoperātiōoperation
6Latin-tiōtion, -ation, -ing
7Latindissertātiō(spoken) dissertation, discourse, disquisition
8Latindissertusarranged, disposed; explained
9Latindissereresecond-person singular future passive indicative...
10Latindis-asunder, apart, in two; reversal, removal;...
11Latincalceusshoe
12Latincalxlimestone; chalk; the finish line
13Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English plan

StepLanguageWordMeaning
1EnglishplanA drawing showing technical details of a...
2Frenchplanplan; map; plane
3Frenchplainplane
4Old Frenchplainfull; plain; flat
5Latinplēnusfull; filled; complete
6Proto-Italicplēnosfull
7Proto-Indo-Europeanpl̥h₁nósfull
8Proto-Indo-Europeanpleh₁-to fill
Every word from Ancient Greek χάλιξ