Word of the Day

Tenebrific “producing darkness” is based on Latin tenebrae “darkness,” plus the adjective-forming suffix -fic. Tenebrae, which is also the source of English tenebrous “dark, gloomy, obscure,” appears to come from a Proto-Indo-European root meaning “dark” that is also the source of German Dämmerung “twilight,” Sanskrit támas “darkness,” and Welsh tywyll “dark.” Another possible relative of tenebrae is Thames, a river that runs through southeastern England, which may come from a Celtic source meaning “dark.” Related to tenebrae is the Latin adverb temere “blindly, heedlessly,” perhaps originally meaning “in the dark,” which is the source of English temerarious “reckless, rash.” Tenebrific was first recorded in the 1640s.

Agglutinative “pertaining to a language characterized by combining morphemes without fusion” is formed from the verb agglutinate “to unite, as with glue,” plus the adjective-forming suffix -ive. Agglutinate ultimately comes from the Latin noun glūten (stem glūtin-) “glue,” which also lends its name to the sticky protein that is found in wheat and other grains that can negatively affect those with an allergy or celiac disease. Partially or totally agglutinative languages are found worldwide, from Japanese, Malay, and Navajo (Diné Bizaad) to Basque (Euskera), Finnish, and Swahili. Agglutinative was first recorded in English circa 1630.

Aegis “protection, support” comes by way of Latin from Ancient Greek aigís “shield of Zeus or Athena,” which may derive from aíx (stem aig-) “goat” in reference to a type of cloak or shield made of goatskin, plus -is, a noun-forming suffix. Because the stem of aigís is aigíd-, aegis may be pluralized in English either as aegises or, more traditionally, as aegides. Ancient Greek aíx does not have any clear relatives in modern English, and it remains uncertain whether aíx is of Indo-European origin or is a borrowing from a Middle Eastern source. Be sure not to confuse aíx with Latin agnus “lamb,” which looks similar but is not related. Aegis was first recorded in the mid-15th century.

Cherubic “of or having the nature of a cherub” is based on the noun cherub (plural cherubim or cherubs, depending on the context), plus the adjective-forming suffix -ic. Cherub derives via Latin from Ancient Greek kheroúb, which was adapted from Hebrew kərūbh. The Hebrew plural kərūbhīm was far better known than the singular kərūbh was, and earlier versions of English (compare Old English cerubim) as well as many Romance languages (compare French chérubin and Spanish querubín) based their singular words for cherub on the Hebrew plural. This singular–plural confusion even appears in literature; Madeleine L’Engle, in A Wind in the Door, includes a character who introduces itself, however paradoxically, as a “singular cherubim.” Cherubic was first recorded in English in the early 17th century.

Toxophilite “a devotee of archery” is based on the term Toxophilus “bow-lover,” which Roger Ascham coined for his book of the same name published in 1545. Toxophilus is based on Ancient Greek tóxon “bow” and phílos “loving, dear,” the latter of which we learned about from the recent Word of the Day philtrum. If you were wondering whether tóxon is related to the English word toxic, you have good instincts! Toxic ultimately comes from Ancient Greek toxikòn (phármakon) “bow (poison),” that is, poison used on arrows. Tóxon may be related to or derived from an Iranian source; compare Persian takhsh “cross-bow, arrow.” Toxophilite was first recorded in English circa 1790.