R

English words with Greek origin beginning with letter r:

1. Rachialgia – From ‘rhakhis’ and ‘algos’ (pain).
2. Rachiocampsis – From ‘rhakhis’ (spine) and ‘kamptos’ (bent).
3. Rachitis – From ‘rhakhis’ (spine).
4. Rachiopathy – From ‘rhakhis’ and ‘pathos’ (suffering).
5. Radius – From Latin ‘radius’, but influenced by Greek ‘rhabdos’ (rod).
6. Radiology – From ‘radius’ (ray) and Greek ‘logos’.
7. Ramify – From Latin ‘ramus’ (branch), influenced by Greek ‘rhama’ (branch).
8. Receptor – From ‘receptum’, influenced by Greek ‘dektos’ (received).
9. Repatriation – From “re” and patrida (fatherland)
10. Rhapsodic – From ‘rhapsōdia’.
11. Rhapsodist – From ‘rhapsōdistes’ (singer of epic poems).
12. Rhapsodomancy – From ‘rhapsōdia’ and ‘manteia’ (prophecy).
13. Rhapsodize – From ‘rhapsōdia’.
14. Rhapsody – From ‘rhapsōdia’ (epic poem, part of a poem).
15. Rheobase – From ‘rheos’ and ‘basis’ (foundation).
16. Rheofilic – From ‘rheos’ (stream) and ‘philos’ (loving).
17. Rheology – From ‘rheo’ (flow) and ‘logos’ (study).
18. Rheostat – From ‘rheos’ (stream, current) and ‘statis’ (standing).
19. Rhetoric – From ‘rhetorikos’ (concerning rhetorical art).
20. Rhetorical – From ‘rhetorikos'(concerning rhetorical art).
21. Rheum – From ‘rheuma’ (a flow, a cold).
22. Rheumatic – Related to ‘rheumatism’.
23. Rheumatism – From ‘rheumatismos’ (discharge of bodily fluids).
24. Rheumatoid – Resembling or related to rheumatism.
25. Rhinoceros – From ‘rhinokeros’ (‘rhino’ (nose) + ‘keras’ (horn)).
26. Rhinoplasty – From ‘rhinos’ (nose) and ‘plassein’ (to shape).
27. Rhizome – From ‘rhizōma’ (mass of roots).
28. Rhodium – From ‘rhodon’ (rose), for the rose color of its salts.
29. Rhododendron – From ‘rhodon’ (rose) and ‘dendron’ (tree).
30. Rhombus – From ‘rhombos’ (spinning top).
31. Rhonchus – From ‘rhonkhos’ (snoring, wheezing).
32. Rhotacism – From ‘rho’ (the Greek letter ‘R’).
33. Rhyolite – From Greek ‘rhyax’ (stream) and ‘lithos’ (stone).
34. Rhytidectomy – From ‘rhytis’ (wrinkle) and ‘ektome’ (excision).
35. Rhythm – From ‘rhythmos’ (measured flow or movement).
36. Rhythmic – From ‘rhythmos’.
37. Rhythmicity – From ‘rhythmos’.
38. Rhetorical – From ‘rhetorikos’.
39. Retrograde – From ‘retrogradus’, influenced by Greek ‘gradi’ (to step).
40. Rhaphanidosis – From ‘raphanidosis’, an ancient Greek punishment.
41. Robotics – Indirectly from Greek ‘robota’ through Slavic languages.