supposey

Chinese Pidgin English

Etymology

From English suppose +‎ English -y.

Conjunction

supposey

1. if, supposing

References

• Gow, W. S. P. (1924) Gow’s Guide to Shanghai, 1924: A Complete, Concise and Accurate Handbook of the City and District, Especially Compiled for the Use of Tourists and Commercial Visitors to the Far East, Shanghai, page 108: “Supposey: suppose; if; admit; a word of wide application.”