The name Terentiah is a form of Terentia.
Terentia is uncommon as a baby girl name. It is not in the top 1000 names.
Baby names that sound like Terentia include Taranah, Tarina (English), Tarnia, Taryna (English), Taurina, Tauryna, Terenna, Terina (English), Terrena, Terrina (English), Therona, Tiernea, Tirranna, Tranesha, Triana (Spanish), Trianna, Trinia, Troiana, Troyana, and Tyrana.
† English pronunciation for Terentia: T as in "tee (T.IY)" ; ER as in "hurt (HH.ER.T)" ; EH as in "ebb (EH.B)" ; N as in "knee (N.IY)" ; SH as in "she (SH.IY)" ; AH as in "mud (M.AH.D)"