Also from the UK and have just learnt that I've likely been pronouncing it incorrectly. Here is a video where a Sikh uses the word several times and it sounds like "sick": https://m.youtube.com/shorts/kM1-DUTgTC4
It feels similar to the situation with "Muslim" or "islam", which have a proper "s" sound in Arabic (as in "messy") rather than a "z" sound (as in "music").
It feels similar to the situation with "Muslim" or "islam", which have a proper "s" sound in Arabic (as in "messy") rather than a "z" sound (as in "music").