-tod

Usage notes
/tɔd/ and /dɔd/ are variants of the same suffix. /tɔd/ (phonetically [tʰɔd]) is always spelt whereas /dɔd/ is represented by  after an unvoiced fricative (phonetically [tɔd]) and by  after other voiced sounds (phonetically [dɔd]).

Suffix

 * 1) -ness, -ment,