English has changed a lot in the last several hundred years, and there are many words once used that we would no longer recognize today. For whatever reason, we started pronouncing them differently, or stopped using them entirely, and they became obsolete. There are some old words, however, that are nearly obsolete, but we still recognize because they were lucky enough to get stuck in set phrases that have lasted across the centuries. Here are 12 lucky words that survived by getting fossilized in idioms.
1. wend
You rarely see a "wend" without a "way." You can wend your way through a crowd or down a hill, but no one wends to bed or to school. However, there was a time when English speakers would wend to all kinds of places. "Wend" was just another word for "go" in Old English. The past tense of "wend" was "went" and the past tense of "go" was "gaed." People used both until the 15th century, when "go" became the preferred verb, except in the past tense where "went" hung on, leaving us with an outrageously irregular verb.
2. deserts
The "desert" from the phrase "just deserts" is not the dry and sandy kind, nor the sweet post-dinner kind. It comes from an Old French word for "deserve," and it was used in English from the 13th century to mean "that which is deserved." When you get your just deserts, you get your due. In some cases, that may mean you also get dessert, a word that comes from a later French borrowing.
3. eke
If we see "eke" at all these days, it's when we "eke out" a living, but it comes from an old verb meaning to add, supplement, or grow. It's the same word that gave us "eke-name" for "additional name," which later, through misanalysis of "an eke-name" became "nickname."
See full list at http://mentalfloss.com/article/51150/12-old-words-survived-getting-fossilized-idioms
