|radio- Prefix "radiation" From Latin radius "ray" (see rayo).|
|radio (1) m. (Noun) "radio" From radiotelegrafía.|
|radio (2) m. (Noun) "radius" 18th cent. From Latin radius "ray," but also "wheel spoke" which bridges the distance and position of a geometric radius. See rayo for continued etymology.|
|radio (3) m. (Noun) "radium" A modern Latinism from radium "radiation," "ray." See rayo for continued etymology.|
|radiotelegrafía f. (Noun) "radiography" From radio- "radiation" and grafia "writing."|
12th cent. From Latin radere 'id.'
From Proto-Italic *rasd-e/o- 'id.' Of uncertain origin.
Romance: Western Vulgar Latin: Portuguese raer, Galician raer, Occitan rasar, Old French rere, Italian rasare; Eastern Vulgar Latin: Aromanian rad, Romanian rade; Sardinian: rasai
Indo-European: Celtic: Welsh rhathu "to scrape," Breton rahein 'id.'
Early 13th cent. From Latin radicem, accusative of radix 'id.'
From Proto-Italic *wrād-ī- 'id.' From Proto-Indo-European *u̯reh2-d-iH- 'id.' From a root *u̯reh2- of unknown meaning.
Romance: Western Vulgar Latin: Portuguese raiz, Galician raíz, Catalan arrel, French racine, Italian radice; Eastern Vulgar Latin: Aromanian arãdãtsinã, Romanian rădăcină; Sardinian: raichina
Indo-European: Celtic: Old Irish frém "root," Welsh gwraidd "roots," Breton gwrizenn 'id.,' Old Cornish grueitan 'id.;' Germanic: Gothic waurts "root," Old Norse rót 'id.,' Old High German wurz "herb," Old Saxon wurt 'id.,' Old Dutch wurt 'id.,' Old English wyrt 'id.' (English wort); Albanian: Tosk rrëzë "root," Gheg rräzë 'id.;' Hellenic: Ancient Greek ῥίζα (rhíza) "root;" Armenian: argat (?) "root;" Indo-Iranian: Old Persian raēša "root;" Tocharian: B witsako (?) "root"
|-rama Suffix sight From Ancient Greek ὅρᾱμᾰ (hórama) "sight," "spectacle," from ὁρᾰ́ειν (horáein) "to see" (Mycenaean o-ro-me-no "watching") and a noun-forming suffix -μᾰ (-ma) (of the same origin as -men). Ancient Greek ὁρᾰ́ειν is from Proto-Indo-European *u̯er- "to notice," "to sense" (of the same origin as vergüenza).|
|rama (1) f. (Noun) branch 11th cent. From Vulgar Latin *rama 'id.' From Latin ramus 'id.' From a pre-form *rād-mo- 'id.,' from Proto-Italic *wrād-mo- 'id.' From Proto-Indo-European *u̯reh2-d-mo- 'id.,' derived from *u̯reh2-d- "root" (see raíz).|
From Middle High German rame 'id.' (Old High German rama).
From Proto-Germanic *ramō- 'id.' Origin uncertain.
Germanic: North Germanic: Old Norse ramr; West Germanic: Old Saxon rama, Frisian Roome, Old High German rama