I discovered an interesting word in Irish yesterday – súilíní [ˈsˠuːl̪ʲiːn̪ʲiː] – which is a diminutive form of súil [sˠuːl̪ʲ] (eye) and means literally “small eyes”, and actually means eyelets, an aperture-sight, or bubbles. For example, uisce gan súilíní is still water (“water without bubbles”) [source].
More common Irish words for bubbles are bolgán and boilgeog.
The word súilíní is also used in Hiberno-English to mean “bubbles of fat floating on top of a stew or clear soup”, and is also written sooleens [source].
The word súil (eye) comes from *sūli, an alteration of the Proto-Celtic *sūle (suns), the dual of *sūlos, which is the genitive of *sāwol (sun), from the Proto-Indo-European *sóh₂wl̥ (sun). Apparently in Irish mythology the sun was seen as the “eye of the sky”, and the word for sun came to mean eye [source].
The words for sun in other European languages come from the same root, and most start with s, e.g. saũle (Latvian), sol (Swedish, Danish, Norwegian, Catalan, Spanish, Portuguese), Sonne (German), etc. There are some exceptions though, including haul (Welsh) heol (Breton), howl (Cornish) and ήλιος (ḗlios – Greek) [source].
I received a email today asking when the Spanish word perro (dog) replaced can, a word for dog derived from the Latin canis, which appears in the name Canary Islands, (Islas Canarias in Spanish).
The Spanish word perro first appeared in the Diccionario de la Real Academia Española in 1737 [source]; was originally pejorative [source] and is possibly of onomatopoeic origin from the growling sounds made by dogs, perr perr (sounds more like a cat’s purr to me). Shepherds also used that sound to call their dogs. Another possibility is that perro comes from a pre-Roman language [source].
In Spanish the word can was used for dog until about the 14th century, after which it was gradually replaced by perro. The words for dog in most other Romance languages come from the Latin word canis: cane (Italian), chien (French), câine (Romanian), cão (Portuguese), can (Galician). One exception is Catalan, in which the word for dog is gos. [source].
The root of the Latin word canis, which appears in biological name for the subspecies of dogs: canis lupus familiaris, comes from the Proto-Indo-European base *kwon- (dog). This is also the root of the English hound (via the Proto-Germanic *khundas and the Old English hund), the English canine, the Greek κυων (kuōn), the German hund, the Irish cu and the Welsh ci [source].
The English word dog comes from the Old English docga, a word of unknown origin which was probably the name of a particular breed of dog, and had largely replaced the word hound as the general term for dog by the 16th century [source]. Hound started to be used to mean “a dog used for hunting” from the 12th century [source].
The name Islas Canarias probably comes from the Latin Insula Canaria (Island of the Dogs), which was originally just the name of Gran Canaria. It is possible that the dogs referred to were seals [source].