relat

The root relat is a small etymological surprise: it is the past-participle form of the Latin verb referre, and referre itself is just re- (back) + ferre (to carry). So at its core, relat means 'carried back.' When the present-tense fer- shifts to the past-participle, the stem changes shape to lāt- (the l of lāt- comes from an old separate verb that Latin borrowed as ferre's past participle, tollere/lātus — one of those irregular suppletive pairs, like English go/went). That is why refer and relate look so different but are the same family: refer uses the present stem, relate uses the past one.

From 'carry back' two great senses unfold:

1. To carry back a report — to tell. When you relate a story, you carry an account back to your listener. This is the narrating sense: 'She related the events of that night.' It's the most literal survival of the original meaning.

2. To carry one thing back to another — to connect. If you carry A back to B, you've put them in contact, established a link. This is the dominant modern sense: things that relate are connected. From here the whole abstract family grows:

- relation — a connection between things (and, by extension, a family member — someone you're connected to by blood).
- relationship — relation + ship (the state of being connected); the bond itself.
- relative — connected to something else, not absolute; also a family member.
- relatively — in a connected/comparative way; 'compared to other things.'
- relativity — the quality of being relative; in physics, Einstein's principle that measurements depend on the frame they're 'carried back' to.
- correlate / correlated — cor- (together) + relate: two things carried back to each other, moving in step.

Notice the thread running through every member: nothing stands alone; everything is carried back and held against something else. Relatively small means small compared to something. A relationship is meaning between two people. Even Einstein's relativity says there is no absolute frame — every measurement is relative to where you stand. The humble idea of 'carrying back' became the deep modern idea that things are defined by their connections.