IPA: /ˈsɛvər/
KK: /sɛvɚ/
To become cut or broken apart; to become separated or divided from something.
The rope began to sever under the weight of the heavy load.
Past: severed
Past Participle: severed
To cut something off or to separate it from something else.
The storm severed the power lines, leaving the town in darkness.
Past: severed
Past Participle: severed
Sever → It is formed from 'severus' (from Latin, meaning strict or serious) and the suffix '-er' (indicating an agent or doer). The word 'sever' means to cut off or separate something in a serious or strict manner.
Think of someone being 'strict' ('severus') when they 'cut off' or 'separate' something — that's why sever means to cut or divide.