Vulgar - common Comes from the Latin vulgus which means mob. When we say something is vulgar, we are saying it is common, lacking in good taste or refinement. It may mean good taste taken to an extreme where it becomes bad taste.
Traverse – to cross The word comes from the Latin transversus, which means to turn across. In English, traverse means to cross. We can use it to talk about climbers traversing a mountain, crossing a gap, or even gossip traversing a room.
Undulate – to wave To the Romans, an undula was a small wave. Two thousand years later, we still say that something that waves undulates. It can describe something that moves in a wave from, but also something that intensifies and abates repeatedly.
Vivid - bright The adjective vivid is a distant relative of the Latin word vivere which means to live. Something that is vivid is bright, colorful or lifelike. Vivid things can make strong impressions on us. Vivid can describe people, things or even ideas.
Pallor - paleness The English noun pallor comes from the Latin pallere, to be pale. Pallor is a noun, the adjective form is pallid. The most frequent use is to describe the grayish countenance of some who is weak, sick or afraid. It can be used however, to describe anything that is paler than normal.