ffiseg

From English physics +‎ -eg, the former from Old French fisike (“natural science, art of healing”), from Latin physica (“study of nature”), from Ancient Greek φυσική (phusikḗ), feminine singular of φυσικός (phusikós, “natural; physical”), from Ancient Greek φύσις (phúsis, “origin; nature, property”), from Ancient Greek φύω (phúō, “produce; bear; grow”), ultimately from Proto-Indo-European *bʰuH- (“to appear, become, rise up”).

• (North Wales) IPA^(key): /ˈfɪsɛɡ/
• (South Wales) IPA^(key): /ˈfɪzɛɡ/

ffiseg f (not mutable)

1. physics

• ffiseg cwantwm (“quantum physics”)
• ffiseg feddygol (“medical physics”)
• ffiseg groynynnau (“particle physics”)
• ffiseg thermol (“thermal physics”)
• injan ffiseg (“physics engine”)