I am familiar with 'mouri' (to die), but I am unfamiliar with 'al bwachat'. Could you give me a bit more information on this expression (i.e. its etymology)?

I am not 100% sure.

Other than Al bwachat or al bwa chat and mouri, other commonly used Creole expression for “to die” are:

trepase

Li trepase a minwi tapan. – He died at the stroke of midnight.

Mezanmi! Ede'm. M'ap trepase. - Help me, I'm dying.

ale nan Peyi san chapo

Manman nou kite n. L’al nan peyi san chapo. – Our mom has left us. She died.

fè vwèl pou peyi san chapo

Kamyon an frape misye, li voye l al fè vwèl pou peyi san chapo. – The truck hit him and sent him to his death

kase kòd

Kon minwi sonnen beng malad la kase kòd. - At the stroke of midnight, he kicked the bucket.

rann dènye souf – to give one’s last breath

Li rann dènye souf li. – He gave his last breath

Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words