The word "didst aboutface" is spelled as /dɪdəst əˈbaʊtfeɪs/ in IPA phonetic transcription. "Didst" is an archaic form of the past tense of "do" and is pronounced as /dɪdst/. "About-face" is a noun that means a complete change of opinion, strategy or direction and is pronounced as /əˈbaʊtfeɪs/. Together, "didst aboutface" means to drastically change one's course of action. Although the word "didst" may not be commonly used today, learning about it adds to our knowledge and appreciation of the English language.
The phrase "didst aboutface" is actually a combination of several terms:
1. "Didst": This comes from the archaic second-person singular past tense form of the verb "do" in Early Modern English. It is derived from the Old English word "dyde", which means "did" or "performed".
2. "About": This term has a Latin origin, coming from the word "ab" which means "away from" or "off". In English, "about" is used to indicate movement or a change in direction.
3. "Face": This term has a Germanic origin and can be traced back to the Old English word "fæs", meaning "countenance" or "appearance".
When combined in the phrase "didst aboutface", it refers to a military command that means to turn around quickly or change direction by making a 180-degree turn.