tis
3 occurrences across the corpus
OT Pseudepigrapha
The Sibylline Oracles 2:63
And 'tis not right men stain it with vile deeds.
The Sibylline Oracles 2:126
'Tis worthless. Harm not any growing fruit
The Sibylline Oracles 3:918
Do not move Camarina; for 'tis better