See

seal (n.1) Look up seal at Dictionary.com
"design stamped on wax," early 13c., from O.Fr. seel (Fr. sceau), from V.L. *sigellum (source of It. suggello, Sp. sello; also O.Fris., M.H.G. sigel, Ger. Siegel), from L. sigillum "small picture, engraved figure, seal," dim. of signum "mark, token" (see sign). An earlier borrowing directly from Latin is represented by O.E. insigel.

US Great Seal Reverse.

sigil (n.) Look up sigil at Dictionary.com
"sign," c.1600, from L.L. sigillum, from L. sigilla (neuter plural), dim. of signum "sign" (see sign (n.)). In astrology, an occult device supposed to have great power (1650s).

The word segula appears in the Hebrew Bible in Exodus 19:5 and Deuteronomy 7:6, where God refers to the Jewish nation as His segula (treasure). The root of this word, segol, is the name of a Hebrew vowel-point represented by three dots. According to the Ohr Hachaim, a segula is "a charm that supersedes logic". Similarly, the Jewish people "possess certain magical properties which have no logical explanation. For example, Chazal in Shabbos (63a) have said that if a Jew intends to perform a mitzvah and is prevented from so doing, he receives reward as if he would have performed it. If, on the other hand, he is prevented from performing a sin, this same principle will not apply. In the case of a gentile, it works in the reverse. He is taken to task for sins that he intends to perform, but receives no reward for the good deeds that he did not manage to carry out".

Сигил или сигилла (от лат. sigillum) — символ (или комбинация нескольких конкретных символов или геометрических фигур), якобы обладающий магической силой. Сигилы широко использовались магами, алхимиками и прочими учеными средневековья для вызова и управления духа или демона. Таким образом, сигил наряду с именем и формулой вызова играл немаловажную роль в гримуаре. Самые известные сигилы представлены в средневековых магических и алхимических книгах (в основном по демонологии): «Малый Ключ царя Соломона», «Печати 6-й и 7-й Книги Моисея», «Сигилы Черной и Белой магии» и других. Хотя самым известным сигилом является пентаграмма.

Kaip kad Amjeno božnicoj:

seal (n.1) ... from V.L. *sigellum ... Ger. Siegel ... (see sign).

sign (n.)
early 13c., "gesture or motion of the hand," from O.Fr. signe "sign, mark, signature," from L. signum "mark, token, indication, symbol," from PIE root *sekw- "point out" (see see).

see (v.)
O.E. seon (contracted class V strong verb; past tense seah, pp. sewen), from P.Gmc. *sekhwanan (cf. O.S., O.H.G. sehan, M.H.G., Ger. sehen, O.Fris. sia, M.Du. sien, O.N. sja, Goth. saihwan), from PIE root *sekw- "to see," which is "probably" the same base that produced words for "say" in Greek and Latin, and also words for "follow" (cf. L. sequor), but "opinions differ in regard to the semantic starting-point and sequences" [Buck].

Thus see could originally mean "follow with the eyes."

see (n.)
"position of a bishop," c.1300, from O.Fr. sied, sed, from L. sedem (nom. sedes) "seat, abode," related to sedere "to sit".

Old Church Slavonic sezda, sedeti "to sit.

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