Father Language in Chinese...

師父 means master in Chinese (occasionally used in Korean Hanja and Japanese). In the context of Martial Arts, this is the master and teacher who instructs students.

The second character by itself means father. Thus, you get the “Fatherly Master” translation. There's an old Chinese saying that goes something like, “One who is your teacher for one day is your father for life.”

Language notes: I've often seen this romanized as “sifu,” this is actually the Cantonese romanization. In Mandarin Chinese, it's “Shifu.” The pronunciation in Mandarin is actually like “sure foo” (using typical English pronunciation). There's an “R-sound” in there, which is not obvious from the romanization. Many martial arts studios incorrectly pronounce this like “she foo” (which is actually the Japanese pronunciation). In Cantonese, it sounds like “Sea foo” (almost like “seafood,” minus the “d” at the end).

師父 is kind of a weird selection for a calligraphy wall scroll; this entry is more for educational purposes. But you are welcome to buy it if it suits your circumstances.

鼈 refers to a species of turtle.

鼈 is Trionyx Sinensis.

鼈 refers to different turtles in different languages. See individual language notes below:

Japanese: 鼈 means “snapping turtle” or “mud turtle.” But rarely used as a single Kanji like this in Japanese.

Chinese: 鼈 means soft-shelled turtle. A specific species, Trionyx Sinensis is native to Asia.
In China, this species is related to the “wang ba,” a soft-shelled turtle sometimes known in English as a banjo turtle (due to its long neck, and general shape). Unfortunately, there is a word, “wang ba dan” which means the egg of this species of turtle. That term has come to mean “bastard” in Chinese (a turtle hatches from an abandoned egg, and does not know who his mother or father is). 鼈 is not a good selection for a wall scroll if your audience is Chinese.

In Korean, this character can be pronounced (though most Koreans would have to look it up in a dictionary). It has not been in common use in Korea for at least a few hundred years.

General notes: You may notice that the bottom half of this character is the same as some other turtle-related titles. That bottom half is actually an ancient character that means “toad.” Though not seen in this way today, most turtle-related characters hold the meaning of “a toad with a shell” in their ancient origin. That toad character is rarely used alone anymore but you can see what it looks like in the image to the right.