since
UK[sɪns]US[sɪns]
prep
from a particular time in the past until a later time, or until now
conj
from the time in the past when something began to happen; because
adv
from a particular time in the past until a later time, or until now
Etymology
The word 'since' is a contraction of the Middle English phrase 'siththen,' which itself evolved from the Old English 'sīþþan,' meaning 'after that' or 'from the time when.' This Old English term is a compound of 'sīþ' (meaning 'journey' or 'time') and the suffix '-þan' (a form of 'then'). The core concept of 'sīþ' relates to the passage or progression of time. Over centuries, the word's form contracted and its meaning specialized, shifting from a general sense of 'afterward' to its modern functions indicating a point of origin in time or a causal relationship.
Analysis
N/A
Examples
I haven't seen him since Tuesday.
It's been years since we last met.
Since you're not interested, I won't explain further.