Is it ensure, insure, or assure?
late 14c., from Old English gesnot "nasal mucus," from Proto-Germanic *snuttan (cf. Old Frisian snotta, Middle Low German and Middle Dutch snotte, Middle Low German snute), from the same base as snout. Old English also had a verb snite "wipe or pick one's nose." Meaning "despicable person" is from 1809.
Nasal mucus; phlegm.
To inhale narcotics, esp cocaine; sniff: since ma was a viper, and daddy would snort (1935+ Narcotics)Related Terms
[drinking sense fr earlier snorter of same purport]