xalxocotl.

Headword: 
xalxocotl.
Principal English Translation: 

a guava fruit

Orthographic Variants: 
sasocotl
IPAspelling: 
ʃɑːlʃokotɬ
Frances Karttunen: 

XĀLXOCO-TL pl: -MEH guava / guayaba (Z) [(2)Zp.65,227, (6)Xp.102]. X has lost the internal L. The literal meaning of this is ‘sand fruit.’ See XĀL-LI, XOCO-TL, XOXOCO-TL.
Frances Karttunen, An Analytical Dictionary of Nahuatl (Norman: University of Oklahoma Press, 1992), 321.

Attestations from sources in English: 

yn sasocotl in centetl cacauatl vntetl yn michtlapictli etetl cacauatl ipatihv = A guava, 1 cacao bean for 2. Fish wrapped in maize husks is worth 3 cacao beans (Tlaxcala, 1545)
Beyond the Codices, eds. Arthur J.O. Anderson, Frances Berdan, and James Lockhart (Los Angeles: UCLA Latin American Center, 1976), Doc. 34, 212–213.