to pour wine in a libation
醊 centers on the ritual act of pouring wine as an offering, specifically a libation. The meaning is narrow and tied to ceremonial pouring.
醊 combines 酉 (wine vessel) with 叕, which likely contributes a phonetic element. The character is associated with pouring wine in ritual contexts.
The left side 酉 is a wine jar, and the right side 叕 looks like a hand pouring from it. Imagine a ceremonial libation where wine is poured from the jar as an offering.
For テツ, picture a tetsubin (鉄瓶, iron kettle) used to pour hot water in a tea ceremony, but here it's wine: tetsu -> テツ, and the wine is poured ritually.