morphine, coffee
啡 is a character used phonetically in modern compounds for 'coffee' and 'morphine', without a single conceptual center. Its standalone meaning is unclear outside these borrowings.
啡 is a modern character created for phonetic transcription, combining 口 (mouth) with 非 for its sound value. It has no ancient pictographic or semantic origin.
The mouth radical 口 suggests a spoken or consumed substance, while 非 hints at the foreign origin. Picture a mouth sipping a dark, bitter drink: coffee, or a medicinal drop of morphine.
For ハイ, imagine a barista saying 'Hi!' as they hand you a coffee: Hi -> ハイ, and the mouth 口 is ready to drink.